Psycholinguistics part 1 Flashcards
Speech perception and word recognition (34 cards)
Source-filter theory
Vocal tone (source) + resinatory cavities (filter) = speech
Perceptual invariance
Phenomenon of variable acoustic input being mapped consistently onto stable units of representation
Coarticulation effects
Variation in the pronunciation of phonemes caused by the articulatory properties of neighbouring sounds
Parallel transmission
Acoustics of phonemes overlap on the speech spectrum
Categorical perception (instead of continuous perception)
Phenomenon where we perceive a continuum of stimuli as being sharply divided into categories (i.e. Phoneme perception in VOT continuums)
Voice onset time
The amount of time between the release of a stop consonant and the vibration of the vocal folds
Forced choice identification task (Lieberman, 1957)
Ask participants to label equally spaced speech sounds on a VOT continuum
ABX discrimination task
Present two stimuli (A & B) then a third (X) and ask if X is more similar to A or B
McGurk effect
Visual stimuli (i.e. videos of articulation) affect how we perceive sound
Ganong effect
Context affects how we perceive sound, i.e. Phonetically ambiguous sounds in words are likely to be perceived as whatever results in a lexical item
Phoneme restoration effect
Context affects how we perceive sound, i.e. Non-speech sounds in the middle of lexical items are perceived (‘hallucinated’) as whatever sound would have fit
Bottom-up effects
Sensory (visual and auditory) input being used to interpret speech
Top-down effects
Knowledge (context + mental grammar) being used to interpret speech
Lexicon
A speaker’s mental dictionary containing lexical entries (words and their associated phonological/semantic information)
Lexical access
The process of retrieving a word from the lexicon
Frequency (lexical property)
A property of words affecting how easily they’re retrieved from the lexicon
Resting activation
How activated a lexical entry is at baseline – increases the more a word is accessed, decays over time
Activation threshold
The threshold that must be reached for a word to be retrieved from the lexicon
Decay function
The rate at which words fade from memory over time so as to return to a baseline level of activation
Spreading activation
The transient activation of other adjacent (related) lexical items when one item is activated
Semantic priming
How the activation of a target word is sped up by a semantically related prime
Mediated semantic priming
How the activation of a target word is sped up by an indirectly semantically related prime
Facilitatory vs. inhibitory effect
Speeding up lexical retrieval vs. slowing it down
Lexical decision task
Participants identify whether a target is real word or not after viewing a prime and their reaction time is measured