ANSWER THE FOLLOWING QUESTIONS USING THE SOURCES PROVIDED ONLY:
1A. Which of the five areas of language fall under the domain of content?
1B. How would you describe the language of this child in terms of content? Provide a specific example.
2A. Which of the five areas fall under form?
2B. How would you describe his language in terms of form? Provide a specific example.
3A. Which of the five areas fall under use?
3C. In addition to your response to 3b, provide an example of an extralinguistic and a paralinguistic aspect of this child’s communication.
Your response to part b of each question must include an example from the child’s utterances that is relevant to that area of language. Responses should be constructed in complete and grammatically correct sentences. Please check your work for accuracy and spelling errors.
M2 Building Blocks of Language
· The System of Sounds
· What is phonological development?
· Acquiring the rules that govern the sounds in a language (including the sound structure of syllables and words)
· Phonological representations are mental representations of sounds that allow us to differentiate one sound from another
· Examples of phonemes/minimal pairs
· How do we develop phonological representations?
· Prosodic cues
· Phonotactic cues
· Vowels develop before consonants
· Consonant order and rates of acquisition vary depending on
functional load and
· Why do you think /m/ emerges before /v/ during phonological development?
· What is phonological awareness?
· The Structure of words
· Free morpheme
· Bound morpheme
· Inflectional morphemes
· Derivational morphemes
· Grammatical morphemes
· Inflectional morphemes are all grammatical morphemes
· Some free morphemes are grammatical morphemes
· What is Morphological development?
· Acquiring the rules that govern word structure
· There are similarities across children in the order they develop grammatical morphemes
· Native language or dialect has a strong influence on morphology in a second language or dialect
· Morphological difficulty is a hallmark of SLI
· The Structure of sentences
· What is Syntactic development?
· Acquiring the rules that govern how words are organized into sentences
· This develops in progression (i.e., from simple and short utterances to complex and longer utterances)
· Again, exposure to language and language impairment will have an impact on development
· Basic sentence types will emerge during early development
· Declaratives – statements
· Negation – negative statements
· Interrogatives – questions
· Complex sentences should also begin to emerge
· Mean length of utterance (MLU)
· A measure of utterance length
· An estimate of syntactic complexity
· Uses morphemes as the unit of measurement
· How to calculate mlu
1. Transcribe at least 50 different utterances from a language sample
2. Count the number of morphemes in each utterance
3. Divide by the total number of utterances in the sample
4. Compare to Brown’s Stages of Development (p. 47 in textbook)
M2 Building Blocks of Language
Part 2: Semantics & Pragmatics
Semantics – The meaning of words
What is Semantic development?
· Learning of words and their meanings
· Acquisition of lexicon
· Forming a mental representation
of a word that draws upon multiple sources of information
· Linguistic sources include:
· Phonological information
· Grammatical information
· Conceptual information
· Receptive Lexicon
· Expressive Lexicon
How do we learn a word?
· By developing a phonological representation of the word
· By experiencing the word in useful contexts
· By forming semantic networks with other related words already in the lexicon
· Repeated exposure
Characteristics that make words easier to learn
· Occurs over the lifespan
· Rapid growth in first several years of life
· First spoken words typically emerge between 10-14 m
· Ave expressive lexicon at 12 m contains only a few words
· Children may acquire up to 60k words by early adulthood
Factors that influence Semantic development
Pragmatics – The social use of language
What is pragmatic development?
· Acquiring the rules that govern how language is used as a social tool
· Communication Function
· Conversational Skill
· Extralinguistic Devices
Function of communication
· The intention behind a message
· We communicate differently based on the situation and our communication goals
· Our development in the other four areas of language can help or hinder these efforts
Rules of Conversation
· Initiation of a conversation or topic
· Turn-taking behaviors
· Topic maintenance or shift
· Familiarity with a situation helps us to participate in it more effectively
· Earliest pre-conversational skill to develop
· Very conversation-like in structure
· In young children, this involves the child and adult maintaining attention on an object
· Leads into early conversation skills
· Aids to communication
· Covey additional meaning beyond the actual linguistic message
· Non-linguistic cues
· Gaze direction
· Facial expression
· Eye contact
· Paralinguistic cues
Prosody, which is superimposed over linguistic messages
So as a supplement to my lecture about the building blocks of phenology, I’m going to add this mini presentation of two slides to describe phonological awareness. Another aspect of phonological development that deserves our attention is the development of phonological awareness. Phonological awareness is having a conscious awareness of the speech sounds. It’s metalinguistic. Metalinguistic is a term we use to discuss the ability to think about and talk about language. Phonological awareness is metalinguistic because it enables a person to do things like detect, identify, isolate, and otherwise manipulate the sounds of language. Developing phonological awareness at an early age is critical. Phonological awareness is an early indicator of reading success later in life. Children who struggle with disability are more likely to have difficulty learning to decode, which is a fancy word for translating the written symbols of language into spoken words. So it’s reading text, actually pulling the print off the page. But not necessarily the understanding or comprehending of text. Decoding is one of two critical ingredients needed to become a successful reader. One being to coding and the other being language comprehension. So because of this critical role, early phonological awareness abilities are seen as a predictor of later reading success in children. Around the age of four, children begin to demonstrate the ability to attend to and manipulate phonological units of speech. Phonological units, maybe word-level units, syllable level units, something we call onset and rhyme, or individual phonemes. At the word level, you may ask a child to listen to a sentence and clap for every word they hear. So an example of that would be listening to, I see a cat and clapping four times, I see a cat. That’s an example of word-level phonological awareness. At the syllable level, you may ask a child to listen to a word and clap for each syllable. So, but or fly, butterfly. At the onset and rhyme level, a child may demonstrate the ability to isolate the first sound or the first sound cluster in a word, and then provide the rest of the word that follows the onset is that first sound or the first cluster of consonants in the word. And the rhyme is the first val, followed by everything else in that word. So onset in rhyme is another level of phonological awareness. Once we get to the phoneme level of phonological awareness, we call this phonemic awareness. At the phoneme level, a child may demonstrate their awareness in a variety of different tasks. They may be able to identify the first or last sound in a word. So if I said the word is cat, What’s the first sound you hear in the word cat? They would be able to say. If I say the word is sun, What’s the last word you hear in the word son? They would be able to say. They may be able to also listened to a word and segment the word into all of its sounds. So when you hear the word cat, what are all of the sounds in the word cat? App? They may also be able to listen to a series of sounds that I present to them and blend those sounds together to make a word. So if I say, so, what word does that make? Sun? These manipulation tasks at the phoneme level, the most important tasks for reading because they are actually used during that decoding process. When you encounter an unfamiliar word in print, you must use your phonological knowledge of the sounds and how they relate to print to help you decipher the word, you’re phonological awareness abilities kick in to help you do this.
This topic was divided into two parts. Part one, discuss the building blocks related to the form of language, including development in the areas of phonology, morphology, and syntax. In part two, I will discuss the building blocks of semantic and pragmatic development. We’ll start with semantics during this presentation. Semantics is the area of language that involves our system for recognizing words and their meanings. As with each of the other areas of language development, semantic development relates to the acquisition of some knowledge. What exactly are you acquiring during semantic development? Your lexicon, your stockpile of vocabulary, all of the words you know, end or use, and what you know about them. Just as with phonological development, you have mental representations of words in your mind. These representations are quite complex because they draw upon multiple sources of information that you have stored for a word. For example, if you’ve heard a word used in context or learned its meaning, you will have that linguistic information stored in your brain. If the word relates to other word, you will like we have made connections to those words as well. We call these connections word associations. If the word relates to something that you have seen, you may have visual representations associated with the word. If it’s a word that you’ve read or spelled, you may also have orthographic information stored in your brain. Your mental representation of words and their meanings are very complex. The linguistic information that you have stored for a word may include phonological information or the way the word sounds, grammatical information, or the word class and how it may be used in a sentence. And conceptual information directly related to the meaning of the word. If you look at these figures which depict the cognitive processes used during word reading, you will see that semantic information is central during the process of reading. This is a widely used model of word reading with labels for each component on the left. And a helpful example of how it applies to a given word on the right. What this model implies is that when you read a word, you must process the orthographic information or the spellings of that word, and then activate your semantic system to access all of the information you have stored about that word. You may also draw upon your phonological memory of the word or how it is pronounced. And you will almost certainly draw upon your understanding of the context surrounding that word. All of these systems work together to help you recognize the meaning of the words you read. What I really want to emphasize here is that our processing of a word involves many different areas of language working in coordination with each other. This is true regardless of whether we read the printed word here, the spoken word, or generate thoughts that contain the word. If we focus on only the spoken language route in this model for today, you will see that we first process incoming phonological information. And this must activate our semantic system. We’re in all of the information about the meaning of the word is stored. This may be enough to understand the word, but we may use additional information from context to help us refine our understanding of the word. And if we are seasoned language users who also know the spelling of the word, we may even draw upon or orthographic information as we process the word. As you can see, the arrows between various processors lead in both directions, indicating that these systems share information. But what is central to understanding or using a word is having that semantic information to draw upon, which is why semantic development is so critical. When we talk about a person’s lexicon or all of the words a person knows and uses. We can discuss this in terms of their receptive lexicon and their expressive lexicon. Think about what you already know about the terms receptive and expressive. What do you think each of these terms is referring to? Receptive generally refers to our understanding of an aspect of language. So receptive lexicon would include all the words the person understands. Expressive refers to our use of language or the output. So expressive lexicon would include all the words the person uses. We commonly refer to these as expressive vocabulary and receptive vocabulary. Receptive and expressive lexicons do not develop at the same pace. We usually understand more words than we use. So how do we learn new words? It is estimated that children learn an average of two new words per day. Solve this word learning is incidental, meaning that they hear a word being used in pick up on the meaning of the word without any special direct attention to the word. Some word learning is more purposeful or deliberate, with special attention drawn to the words meaning. Two examples of the word and, or the context surrounding the word. In the field of education, we call this explicit teaching. Young children learn words better when they have an interest in learning, or when they already have their attention fixated on something. Adults who recognize this about their child will capitalize on the opportunity to label and describe objects or actions that the child is holding, playing with, or attending to. Word learning isn’t an all or none phenomenon. Each of the words in our lexicon we know to varying degrees. However, word knowledge deepens with increased exposure in multiple contexts. I always liken this to meeting a large group of people for the first time. Everybody tells you their name and it’s hard to remember those names. Sometimes you have to meet a person a second time or third time or fourth time to really internalize their name. Learning a word is similar in that way. For young children, they must first here and develop a phonological representation of a new word. The context surrounding this initial exposure to the word will be very important as it will provide more information that is stored with the mental representation. Words that convey more concrete concepts are easier to learn than words that convey abstract concepts. Beliefs, and mental states are often more abstract. For example, for young children, the concept of being smart is somewhat abstract, making it more difficult to learn. Words with concepts that are more accessible to children are easier to learn. In other words, if a child has already learned other language that will help them learn a new word, that makes learning the word more accessible to the child. Again, words at our abstract are often less accessible to children. Words that are imaginable are easier to learn as well. If a child can draw upon a mental picture when learning a Word, this will facilitate learning the word. Words that are more concrete, maybe more imaginable. Here is just a sampling of the milestones related to development of vocabulary. Your lexicon grows over the span of your life. Rapid growth happens during the first several years of life. But the first words are typically not spoken until about ten to 14 months of age. The average expressive lexicon for a twelv month old contains only a few words. And by the time children enter early adulthood, they’ve learned up to 60 thousand words. Just as with other areas of language development, semantic development may be influenced by several factors. Interestingly, girls seem to develop a larger vocabulary than boys during the early years. The reason for this is not known, but it may relate to the type and frequency of linguistic interactions that girls have with more mature language users. In addition, the language environment during early development will play a critical role in the number of words learned, the rate of acquisition, and the degree or depth of word knowledge. Some environmental factors that have emerged from research include the socioeconomic or the educational backgrounds of families, or whether or not children attend high-quality preschool programs. Semantic development and the language environment is closely tied to exposure. If a child doesn’t hear a word, he or she can’t possibly learn the word. This has important implications for children later on in school and life. As children who are raised without rich linguistic input may fall behind children who have this input. The last area of development that we’ll discuss is the development of pragmatics, which involves the social use of language. Pragmatic development refers to the acquisition of the rule system that governs how language is used socially. These rules help people adjust their language for different purposes. They also allow us to know what to expect and how to behave as we hold a conversation with others. To communicate effectively, you really do need to be a good communication partner. So the development of this rule system enables us to achieve this goal. During communication, people must know how to communicate with others for different purposes. This is referred to as communication function. It’s the intent behind any given message. During pragmatic development, we learn that we communicate differently to achieve different goals. The communication situation will also drive the way we communicate with each other. Children become more skill and tailoring their communication attempts match the function or the intent of their message. However, it’s important to realize that if they have difficulty in any of the other areas of language. So in phonology, morphology, syntax, or semantics, that can hinder their ability to achieve their intended goals during communication. There are several purposes for communication. The textbook for this course provides a description of these seven basic communication functions. To become familiar with these, pause the lecture to read the label and description for each function. Now, once you’re done, hit play to check your understanding of each. Let’s check your understanding which function applies to each of the following utterances. One time a princess was in a castle and the castle was surrounded by dragons, but then the King and the Queen came to save her. Hopefully you chose imaginative. Here’s the next one. I don’t like it when Timothy takes my truck. This would be an example of personal. I used the pencil, the green one with the eraser. This example is informative. Can I have something to drink? This is an example of instrumental. How did the men build that house? This is an example of heuristic. No, put that block on the top of the tower. This exemplifies regulatory function. What game do you like to play? This exemplifies interactional and perhaps heuristic. Next, let’s turn our attention to conversational skills. Another building block of pragmatics. When you communicate with another person, you tend to follow some established conversational procedures. These generally consist of knowing how to start a conversation or initiate a topic of conversation with your conversation partner. Knowing how to wait your turn to speak and how to listen while others speak. Knowing how to contribute to the topic and keep the conversation going, and knowing how and when to exit the conversation. Young children have to develop this knowledge and most are able to do this. Experience and perhaps some explicit training. How often have you heard a parent or a teacher say to a child? I’m talking to another adult right now, what should you do when I’m talking to another adult? This experience allows the child to gradually develop a schema for how conversations work. Obviously, once a child becomes familiarized with the situation of holding a conversation or developing that schema, they become better at doing it. Joint attention is a critical part of early communication development. In early development, this involves a child and an adult attending to an object of interest during interactions. Joint attention to the object is established first, much like topic initiation during a conversation, the child and adult may share and attending to the object and turn taking is established. Eventually the interaction is ended. These early experiences involving joint attention lead into the development of early conversational skills. Children who have significant difficulty maintaining joint attention often have difficulty learning and using the rules of conversation. And sometimes this is an early indicator of difficulty in other areas of language. Last, let’s talk about extra linguistic devices used during communication. These are cues that are mostly non-linguistic in nature, and they serve to convey additional meaning above and beyond the actual words used to deliver a message. Some extra linguistic cues are fully non-linguistic. And our supplemental to the message. During communication, we use directional gaze, facial expression, or even posture to provide more information to our listener. We must also learn to interpret these various cues when listening to others during conversation. We may not realize the importance of the extra linguistic cues until we have a communication breakdown during an email or text message with someone, where we communicate an idea in a manner that we think is effective. But the person receiving the message isn’t sure how to interpret the message. We use these devices more than we may realize during in-person communication. Some extra linguistic cues are part of the spoken message, or rather they are superimposed over the message. These may be referred to more specifically as paralinguistic cues. And they are aspects of prosity, which are the parameters of voice and speech that include pitch, volume, and duration of sound. Again, these are aspects that make speech sound human and not robotic. And they can be used very purposefully to communicate more information with the linguistic message, such as emotion, excitement, boredom, fear, et cetera. Young children developing their pragmatic rule system tend to learn from extra linguistic cues at an early age and will begin to use these devices to help them communicate their message. When children don’t have the words for the message they want to deliver, they may turn to extra linguistic means to supplement their language. At this point, we have covered many key concepts underlying development across all five areas of language. To further your understanding of these building blocks of language and how they develop. Be sure to read the chapter. I have not discussed the various milestones that children reportedly achieved during typical development. So you may want to learn more about these as well as the factors that influence development in each area of language. This is the end of this presentation.
Now that you have a basic understanding of the connections between communication, speech, hearing, and language, as well as the five areas of language. We will spend some time discussing these building blocks of language in more depth. This presentation will address specifics about each of these areas of language and what typical development in each area entails. We’ll start with phonology. Recall that phonology relates to the system of sounds and language. Because we’re focusing on language now and not speech production. Keep in mind that phenology is not referring to the physical or motor production of speech sounds, but rather the system of rules needed to produce a message in a given language. In other words, remember speech is largely a motor process. While language and all five components of language involve cognitive processes. Phonological development involves the acquisition of that rule system that governs the sounds used in a language. This includes rules about what sounds are used, where they can be used in words, how they can be combined in words, and the overall sound structure of words in a language. So for example, in English, there are rules about how syllables can be structured. You may hear someone talking about syllables in terms of consonants and vowels. So they may refer to CV or CVC, where C, CVC syllables, these are syllable structures used in language. Having knowledge of this rule system is having phonological knowledge. So phonological knowledge relates to knowledge of the way in which sounds are organized, recognized, and understood. We are born with this knowledge. We develop it over time. So let’s talk a bit now about how this phonological development occurs. Phonological representations are the mental imprints we have created and stored in our mind for the speech sounds we use. This is a rather abstract concept. So let’s take a look at an example to make this more concrete. Take for example, the words pat and bat. First. Let’s remove the aspect of spelling for a moment and just focus on the spoken words. Pat, bat. How do you know when you hear someone say these two words that they are not the same. If you watched someone say these words without hearing any sound, you likely wouldn’t see a difference in production of these two words. Let’s assume you are able to hear the words and you therefore can hear the difference in sound at the beginning of each word. How do you recognize that there is a difference? You’re able to differentiate between these two spoken words because you are fully equipped to process the sounds in the language or languages you speak, in this case, English. You can do this by using phonological knowledge that you have for each of these speech sounds, which is stored in your brain. Therefore. You have phonological representations of each sound in your brain. When the phonological information we need for a given language is completely developed in the brain. We don’t need to consciously think about whether the sounds and there are different when hearing these words. Because the phonological system is able to do that for us. That ability to detect a single difference in sound is an important result of phonological development. It begins to develop at birth and continues into early childhood. Many children develop this ability without experiencing much difficulty, but some children do have trouble developing the phonological rules of their native language. And this may lead to a phonological disorder. Why is it important for us to develop this ability to distinguish or recognize the difference between speech sounds in our language. Well, in spoken words, one small change in sound has the capacity to result in a change in meaning, as in the words pat and bat. A fully developed phonological system will recognize that these words are not the same. And underdeveloped phonological system may not. A child who does not have fully develop phonological representations may have difficulty distinguishing between words like this. And they may also have a difficult time producing words. For example, they may produce one sound for many different sounds. And this would obviously reduce their chance of being understood by others. Note again, that I’m not talking about a child having difficulty producing speech sounds due to structural or motor difficulties, but rather due to their lack of mental representation of certain sounds or their lack of understanding of how sounds work and the phonological system. So let’s return to the meaning of the word phoning for a minute. Remember a phoneme is a smallest unit of a sound that signals meaning when I say the word Pat, and then change the first sound to the meaning of the word will change. While a phonemes such as or, but isn’t meaningful on its own, does serve to signal meaning differences within words. When two words differ by a single speech sound, we call those words minimal pairs. Pat and bat, or minimal pairs because they differ by only the first sound. Pack and pack are minimal pairs because they differ only by the last sound. Pat and pit are also minimal pairs because they differ only by the medial sound. We need to know about minimal pairs because a person who hasn’t developed phonological representations for all of the sounds and their language may not notice a difference between certain words that differ by only one sound. Likewise, there production of words that differ by a single sound may also be affected. And this is likely to result in the inability of listeners to understand their spoken message or reduced intelligibility. Speech language pathologists use minimal pairs to help in certain aspects of diagnosis and treatment of individuals with phonological disorders. So now that I’ve explained the basic concepts related to phonological development, we can turn to a broad discussion of how this phonological system develops. As I mentioned already, this system begins developing at birth. In the early phases, infants have no concept of speech sounds. They begin to acquire this knowledge through exposure to language. Your textbook refers to prosodic and font attack to cues. Prosity is the rhythm and inflection of voice during speech. It involves tone of voice and pausing. It is what makes our speech sound human and natural, as opposed to robotic. Phone a tactics you should recall relate to the ways in which sounds can be combined within words in a language. Together, prosodic and phone atactic aspects of language provides some of the earliest information about language to infants. They start to recognize and take cues from these aspects of language. With more exposure, they can begin to recognize the patterns of language. And this can help them develop important early phonological milestones, such as recognizing word boundaries during the speech stream. In addition, as infants begin vocalizing and playing with sounds, they begin to produce speech sounds. Vowel sounds are used first during typical development, and eventually consonant sounds are added to the phonemic inventory. Continents develop much more gradually, and the order of acquisition of consonant sounds will vary depending largely on the functional load of the sound or the frequency of the child’s exposure to consonant sounds in the words they hear. So given this information, think about the following. Your textbook indicates that the sound develops before the sound. In English. The authors ask, why do you think would emerge early and would emerge later in English? Pause and take a moment to think about why this would be. Children are likely to be exposed to and to use words with the sound much more frequently than the sound. The sound that is associated with the letter M has a greater functional load in English, and children are likely exposed to more words with that sound. In addition, difficulty involved in physically producing sounds may also play a role. Although in this case, isn’t particularly difficult to produce for most children. You’ll find a version of this chart in your textbook. And this is also provided by Usha. This chart is commonly used as a standard for normal or perhaps more appropriately, typical development of consonant sound production in young children. The black bar for each sound represents the age range when children are typically developing the sound. The age level across the top of the chart is in years. So let’s look at the age of development for the sound. For example. Now this can be interpreted is that children may develop the sound before or after the age of two. But the average age that children begin to develop this sound is 290% of children tend to have this sound by the age of four in their phonological inventory. Therefore, a child who has not yet developed the sound at one year of age, or 1.5 or even 3.5 is not developing atypically. However, if the child has not developed the sound by the age of four years and three months. This would be considered delayed development of this sound using these standards. Moving on from phenology, we will now explore the development of morphology. Recall morphology involve some rules that govern the structure of words. To understand morphology, you must understand the concept of the morpheme, which I explained in the last module. But to refresh your memory, a morpheme is the smallest meaningful unit of language. Every single word we use can be explained in terms of its morphemes. Some words contain only one morpheme, while others may contain two or more. In the previous module, I explain the difference between free unbound morphemes. Think about how I defined these terms. It may help to recall the example I provided first. What is a free morpheme? What other examples of a free morpheme can you think of? What is a bound morpheme? Pause this presentation to see if you can answer these questions and come up with a few examples of your own. A free morpheme will stand alone and convey meaning. While a bound morpheme can only convey meaning when added to other morphemes. In the last module, I use the word book as an example of a free morpheme. When you add the plural es to the end of the word book than that plural marker S is a bound morpheme. Plural S only carries meaning when it’s attached to the end of a noun, marking plurality. Here are some examples of morphemes that stand alone and convey meaning. Sometimes determining if a word is a free morpheme can be a little challenging because English adopts many of its words from other languages, including Greek and Latin. Both which provide many routes as well as other word parts. But for now, just know that many English words contain a single free morpheme. In English, bound morphemes serve two primary purposes. They either change the part of speech or the meaning of a word, or they modify or word. Derivational morphemes changed the part of speech or the meaning. Inflectional morphemes modify the word by adding additional meaning. So as an example of a derivational morpheme that changes the part of speech. If I add L-Y to the end of the word quick, I changed the adjective quick to the adverb quickly. As an example of a derivational morpheme that changes word meaning. If I add this to the beginning of the verb, like the new word retains the same part of speech. It’s still a verb, but it has a completely different meaning. Dislike. As an example of an inflectional morpheme that modifies a word. If I add ED to the end of the verb cook, only modify the word cook to indicate that the action happened in the past. Likewise, if I add ES to the end of the noun dish, I modify the word to indicate more than one dish, but I don’t change the part of speech or the central meaning of the word dish. Your textbook also discusses the term grammatical morphemes. All inflectional morphemes are grammatical morphemes, and some free morphemes are grammatical morphemes as well. Examples would be the Xi, An. So with all of these definitions and examples in mind, morphological development is important in early language development as it involves the acquisition of these and many other morphological rules. It’s important to understand these basic but critical aspects. Research has shown that children tend to acquire the rules of morphology in a similar way. The work of Brown resulted in the stages of development provided on page 39 of your textbook. This table on page 39 shows you the typical order, an age at which the earliest grammatical morphemes develop, starting with the inflectional ending ING and moving to plural S. Various prepositions and past tense forms. This table is instrumental in helping speech language pathologists and others in the field of early childhood gauge a child’s developmental milestones in morphological development. When children do not develop the rules of word structure in this predictable way, it may be the result of a few factors. First, children who are exposed to a different language May 1 have more difficulty learning morphological rules in a second language. Second, children who have specific language impairment often have the most difficulty with this aspect of language. So this could be an early sign of SLI for some children. Now let’s talk for a few minutes about syntactic development. Hopefully, you will recall that syntax involves the structure of lager units of language. Generally speaking, syntax relates to the rules of sentence structure. This is commonly referred to as grammar. So syntactic development involves the acquisition of rules that govern how words are organized into sentences in a given language. This development of sentence structure occurs in a progression from very simple sentence structure to increasingly more complex structure in children. It’s important to recognize that with typical language development, children have an amazing capacity to learn syntactic rules without the need for anyone to explicitly teach them. By six years of age, most children’s utterances are about as long as adults utterances, demonstrating the rapid nature of this linguistic growth. One factor that has an enormous impact on syntactic development in children is the linguistic environment. The direct interactions children have with other more mature speakers of their language will set the stage for their language growth. The complexity of language use during direct interactions with children is likely to impact the complexity of language they develop. Children with specific and secondary language impairments tend to struggle with this aspect of language development, just as they do with the morphological aspect of language. Children with language impairments often produce shorter and less complex sentences and have trouble with verbs. So both of these areas are often the target of assessment and intervention. And children experiencing language difficulties. Also individuals who have acquired a language disorder later in life due to brain damage from a stroke will sometimes have difficulties in the area of syntax. Sentences serve various purposes. Typically, children use declarative negative, an interrogative sentence types during emerging language. A declarative sentence just involves making a statement. By three years of age, children have often mastered the most basic declarative sentence structures. They may even add complexity to these statements with the addition of clauses. Negative sentences obviously express negation and include words like no, not, can’t, don’t, and won’t. Initially a child will create negation by putting no at the beginning of an utterance. They become more sophisticated in sentence building. They learn to move the negative word to the appropriate place within the sentence. Interrogative sentences involve asking questions. Early emerging interrogative sentences use W-H words, such as what, where and why. During the preschool years, this expands to the use of who, whose, when, which, and how. Yes and no questions are also interrogative sentences. Compound and complex sentences contain more than one clause and are joined by special words called conjunctions. Coordinating conjunction joins independent clauses or sentences. Examples are the words and, but and or. Subordinating conjunctions introduce a subordinate clause and use words such as Although or because. More complex sentences also develop through the emergence of phrasal development of phrases, a cluster of words organized or imbedded around a nucleus. I think your textbook cause this ahead. The nucleus of the phrase determines what kind of phrase it is. There are noun phrases, prepositional phrases, adjectival phrases, and verb phrases. Around the age of three, children can begin to master sentences with conjoined in embedded clauses. Mean length of utterance or MLU, is a measure of the average number of morphemes a child uses per an utterance. Emily, you is widely used in fields related to early childhood development to estimate Syntactic Complexity. And it is often used to determine whether a child is developing as expected in this area of language. To calculate the mean length of utterance for a child, what you first need to do is obtain a language sample. This is often done by talking and playing with a child and recording their utterances or their use of language. You want to have a substantial sample to calculate Emily, you. So it’s recommended that you obtain a sample of at least 50 utterances. Once you have your sample, you must transcribe the utterances. Then you count the number of morphemes the child uses in each utterance, and divide that number by the total number of utterances included in the sample. This will give you a mean or average number of morphemes per utterance. This number is then compared to a set of norms that have been developed by Brown and are widely used and can be found in a table on page 47 of your textbook. You will learn more about determining MLU later in this course and will have the opportunity to calculate it as well using a language sample. For now, just become familiar with the method and the basic concept. In this presentation, we have covered basics in the development of three of the five components of language, phonology, morphology, and syntax. These components make up the domain of form or the structure of language. From this presentation in the chapter, you should be building a stronger understanding of these areas of language, as well as the systems that must be developed for an individual to be skilled in each of these areas. This is a good point for you to take a break and reflect on the information presented so far in this module, I will provide a second presentation that cover semantic and pragmatic development.
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