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Chapter 12

Chapter 12

19 Pages
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Department
Psychology
Course Code
PSYB57H3
Professor
Gabriela Ilie

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Chapter 12 – Language
The Nature of Language
The understanding of language is relatively automatic. As we hear or read a sentence, we
focus on its meaning and comprehend it by using the information stored in our long term
memory.
Psycholinguistics refers to the study of comprehension, production and acquisition of
language.
Levels of Language Representation
A sentence is composed of many different pieces and these different pieces are referred to as
different levels of language representation
Grammar refers to the rules of usage but in linguistics grammar refers to the sum of
knowledge that someone has about the structure of his/her language. Most of the grammatical
knowledge is unconscious but it underlies our ability to speak or comprehend a language
Various levels of language representation explain how we understand sentences. These levels
include:
1.Discourse level refers to a coherent group of written or spoken sentences.
This level mentally represents the meaning of an sentence that goes beyond
the meaning of individual words.
In this representation, the two most important parts are the subject and the
object.
The relationship between the words is explained in terms of a propositional
representation which relates the action, the one doing the action and the
thing that is acted on.
Discourse level links the sentence to the context in which it occurs and links it
to information in the long term memory. This linkage can help us remember
how things work in a particular situation e.g. the last time we ate at x fast food,
the food was bad – notice we performed the action of eating the object food
and the incident occurred last time which was then stored in our long term
memory
1
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2.Syntax level specifies the relationships between the types of words in a sentence (e.g.
between noun and verb)
Syntax represents the structure of a sentence and it is believed to be a part of
our mental representation of sentences as well. It builds on the doer, action
and the object
Representing the syntax of a sentence uses a phrase structure tree which is a
diagram of a sentence that illustrates its linear hierarchical structure. It breaks
down the components of a sentence.
It is believed that we build a mental representation of the trees hierarchical
representation of the word relationships and likewise comprehend the meaning
of the sentence.
At the level of syntax comprehenders make a decision about the word order. A
sentence can have the same content but different syntax based on the word
order.
Patients with damage to the left hemisphere may have aphasia which refers
to language or speech disruption. Aphasia can manifest itself in various ways
and one manifestation that involves disruption of syntactic level of
representation is called non-fluent aphasia or Brocas aphasia. (Brocas ara
is the left frontal area)
Patients of Brocas aphasia have difficulty relating the discourse and the
syntactical level of representation. The difficulty is not related to the meanings
of the words – these patients do understand the meanings of the words but fail
to understand the relationship among the words in the sentence (they may
shuffle around the words of a sentence while comprehending/producing).
Since these patients have long term memory of objects, usually they can relate
the doer, action and object using their logic from memory.
3.Word and morpheme level; at this level the meanings of the words are encoded:
Morphemes are the building blocks of words i.e. the smallest unit of meaning
in a language. Words can be composed of single or multiple morphemes e.g.
burned/noodles is composed of two morphemes i.e. burn and –ed or noodle
and –s
Bound morphemes are the plural and past tense forms that attach onto other
morphemes – they are usually prefixes or suffixes
2
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Free morphemes are the single words that can stand alone.
Content morphemes are the words that carry meaning but do not provide
much information on the sentence structure
Function words or function morphemes e.g. the or –ed ending type of words
convey less meaning but carry information about relationships among words
and about the syntactic structure of a sentence. Function morphemes link the
level of word and syntax
Patients of Brocas aphasia who have difficulty with syntax also have trouble
perceiving and producing function morphemes. Their speech lacks function
morphemes
Patients of Wernickes aphasia or Fluent aphasia have a different problem
at the level of word and morphemes. These patients have grammatical speech
with nouns, verbs and other parts of speech but they cannot produce content
morphemes properly and speech ends up being nonsensical. These patients
also have difficulty comprehending content morphemes and thus have very
little understanding of what is being said to them.
The difference in Brocas and Wernickes aphasia emphasizes that language is
organized at different levels within the brain. The impairment at one level such
as disruption of functional morphemes suffered by Brocas aphasics can lead
to trouble at other levels as well e.g. in interpreting the sentence syntax which
can then lead to difficulty in understanding the meaning of a sentence
4.Phonemes level
Phonemes are the smallest distinguishable units of speech sounds that make a
morpheme in a language.
We can alternatively use alphabets instead of phonemes as the smallest unit of
morphemes but we dont since different languages differ in writing, different
way of writing may have the same pronunciation or people may differ in
pronunciation themselves. Phonemes help provide a degree of universality
Phonetic alphabets are universal symbols for speech sounds that can
represent all languages independent of how they are written or spelled. These
symbols merely represent how the word should sound
3
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Description
Chapter 12 Language The Nature of Language The understanding of language is relatively automatic. As we hear or read a sentence, we focus on its meaning and comprehend it by using the information stored in our long term memory. Psycholinguistics refers to the study of comprehension, production and acquisition of language. Levels of Language Representation A sentence is composed of many different pieces and these different pieces are referred to as different levels of language representation Grammar refers to the rules of usage but in linguistics grammar refers to the sum of knowledge that someone has about the structure of hisher language. Most of the grammatical knowledge is unconscious but it underlies our ability to speak or comprehend a language Various levels of language representation explain how we understand sentences. These levels include: 1. Discourse level refers to a coherent group of written or spoken sentences. This level mentally represents the meaning of an sentence that goes beyond the meaning of individual words. In this representation, the two most important parts are the subject and the object. The relationship between the words is explained in terms of a propositional representation which relates the action, the one doing the action and the thing that is acted on. Discourse level links the sentence to the context in which it occurs and links it to information in the long term memory. This linkage can help us remember how things work in a particular situation e.g. the last time we ate at x fast food, the food was bad notice we performed the action of eating the object food and the incident occurred last time which was then stored in our long term memory 1 www.notesolution.com 2. Syntax level specifies the relationships between the types of words in a sentence (e.g. between noun and verb) Syntax represents the structure of a sentence and it is believed to be a part of our mental representation of sentences as well. It builds on the doer, action and the object Representing the syntax of a sentence uses a phrase structure tree which is a diagram of a sentence that illustrates its linear hierarchical structure. It breaks down the components of a sentence. It is believed that we build a mental representation of the trees hierarchical representation of the word relationships and likewise comprehend the meaning of the sentence. At the level of syntax comprehenders make a decision about the word order. A sentence can have the same content but different syntax based on the word order. Patients with damage to the left hemisphere may have aphasia which refers to language or speech disruption. Aphasia can manifest itself in various ways and one manifestation that involves disruption of syntactic level of representation is called non-fluent aphasia or Brocas aphasia. (Brocas ara is the left frontal area) Patients of Brocas aphasia have difficulty relating the discourse and the syntactical level of representation. The difficulty is not related to the meanings of the words these patients do understand the meanings of the words but fail to understand the relationship among the words in the sentence (they may shuffle around the words of a sentence while comprehendingproducing). Since these patients have long term memory of objects, usually they can relate the doer, action and object using their logic from memory. 3. Word and morpheme level; at this level the meanings of the words are encoded: Morphemes are the building blocks of words i.e. the smallest unit of meaning in a language. Words can be composed of single or multiple morphemes e.g. burnednoodles is composed of two morphemes i.e. burn and ed or noodle and s Bound morphemes are the plural and past tense forms that attach onto other morphemes they are usually prefixes or suffixes 2 www.notesolution.com
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