Speech production Flashcards
vocal fold
pair of membranes across opening of glottis
3 cavities of vocal tract
Nasal cavity
Oral cavity
Throat
Glottal stop
a consonant produced by constricting vocal folds
often used by children
Manner of articulation
degree of which airflow is obstructed in the production of consonants
Schwa
neutral mid-central vowel occurring in many unstressed vowels
Diphthong
vowel combination perceived as one vowel
Expressive aphasia (non-fluent aphasia)
loss of speech production only
Receptive aphasia (fluent aphasia)
loss of speech comprehension, meaningless speech production
Conduction aphasia
preserved speech production and perception but difficulty in repeating the spoken language
primary sensory cortex
postcentral gyrus
primary motor cortex
precentral gyrus
anterior cingulate cortex
error detection and monitoring conflict
anterior insula
language processing
perisylvian region
language processing
initiating and maintaining fluent speech (1st part)
supplementary motor cortex, anterior cingulate cortex
generating phonetic plans (2nd part)
broca’s area
anterior insula
bilateral precentral gyrus
coordinating the movements for speech (3rd part)
bilateral precentral gyrus
cerebellum
basal ganglia
thalamus
damage to movement of production of speech (3rd phase)
dysarthria - motor speech disorder, poor articulation of phonemes and prosody
Dual stream - ventral stream
bilateral - interpret incoming speech
Dual stream - dorsal stream
left hemisphere
link speech signal to motor programs
Phonation stage
birth to 2 months
produce vowel-like sounds
Gooing stage
2-4 months
syllable-like sounds
Expansion stage
4-6 months
different sounds and well-formed vowels
Canonical babbling
prelinguistic vocalisation characterized by sequences of clearly formed vowel syllables
Frames then content model
theory that eplains babbling in terms of repeated jaw movement
3 patterns predicted from a motor-driven speech production
central vowel
front tongue
back tongue
fis phenomenon
can differentiate between two phonemes but can only produce one
residual speech sound error
Misarticulations that persist into the elementary school years