11. LANGUAGE Flashcards
What is language?
- a system of communication using sounds or symbols
- enable us to express our feelings, thoughts, ideas and experiences
What are the 2 natures of language?
- hierarchical nature of language- consists of a series of small components that can be combined to form larger units (words can be combined to create phrases)
- rule based nature of language- these components can be arranged in a certain way
What are Broca’s area and Wernicke’s area known for?
Broca (frontal lobe): is responsible for the production of language
Wernicke (temporal lobe): resposible for comprehension of language
What are the four main concerns of psycholinguistics?
- comprehension- how do people understand and write language
- representation- how is language represented in the mind
- speech production- how do people produce language
- acquisition- how do people learn language
Define lexicon, and hence lexical semantics.
lexicon- is our mental dictionary of all the words we know
lexical semantics- the meaning of words
Define word frequency and hence the word frequency effect.
Word frequency- the frequency with which a word appears in a language
Word frequency effect- we respond more rapidly to high frequency words like than to low frequency words. a word’s word frequency also influences how we process the word
WFE can demonstrate how our past experiences with words influence our ability to assess their meaning
What is the lexical decision task and how does it work?
lexical decision task- is to quickly decide if the string of letters are words or non words. it is one way to process the difference between high and low frequency words
slower response for low frequency words is demonstrated by measuring people’s eye movements while reading
What is total gaze duration?
The sum of all fixations made on a word
What is speech segmentation?
The perception of individual words even though there are often no pauses between the words
What are some complications we need to consider when understanding words?
- differences in word frequency: high or low
- pronunciation of words are variable: context, accents, speeds
- there are no silences between words in a normal conversation
Describe lexical ambiguity and lexical priming.
Lexical ambiguity- words can have more than one meaning. when ambiguous words appear in a sentence, we usually use the context of the sentence to determine which definition applies
Lexical priming- priming that involves the meaning of words. occurs when a word is followed by another word with a similar meaning.
(the priming effect will not occur if the meanings of both words are not related)
Describe an eg. that can explain lexical ambiguity and lexical priming.
Tanehaus et al. (1979)- people briefly access multiple meanings of ambi words before the effect of the context takes over.
condition 1: partis heard ‘she held the rose (noun)’ -> say ‘flower (noun’ as quickly
condition 2: partis heard ‘they all rose (verb)’ -> say ‘flower (noun)’ as quickly
PART A.
- the time that elapsed between the end of the sentence and when partis began saying the word is the reaction time
- RESULT: the word rose resulted 37ms faster than the word in the control
- ‘they all rose’ still resulted in a faster response to flower than the control
- HENCE what this means is that the flower meaning of rose is activated after hearing rose, whether it is a noun or verb
- an ambiguous word’s meaning are activated immediately after hearing the word
PART B.
- they re-ran the experiment again and added a 200ms delay between the end of sentences and the probe word ‘flower’/
- RESULTS: priming still occurs for condition 1, but no longer for condition 2.
- HENCE the context is provided by a sentence helps determine the meaning of a word, but context exerts its influence after a delay during which other meanings of a word are assessed.
Does the frequency in which different meanings occur, affect the way people assess meanings of words in a sentence? Name the 3 types of dominance associated with it.
Yes.
Meaning dominance- the relative frequency of the meanings of ambiguous words
Biased dominance- when particular meanings of words occur more often than others (tin as in a type of metal vs tin as a small metal container)
Balanced dominance- when 2 particular meanings of words are equally likely (cast as in members of a play vs plaster cast)
What is the difference between biased and balanced dominance
The difference between both influences the way people access meanings of words as they read them.
Researchers measure eye movements as partis read sentences and note the fixation time for ambiguous words and also for a control word (with one meaning).
- Meaning frequency
- cast here has balanced dominance. hence the parti will take longer
- both meanings are activated
- but when the reader reaches the end of the sentence, the meaning becomes clear - Context frequency
- context can play a role as well
- in a sentence where the context is added bef the ambiguous word can indicate the meaning
What is syntax?
- the structure of a sentence
- discovers cues that language provide
- shows how words in a sentence relates to one another