Communicative Disorders Exam 2
Communicative Disorders 110 with Lufti at University of Wisconsin - Madison
About this deck
By: Meg Perry
Textbook:
Human Communication Disorders: An Introduction (7th Edition)
Created: 2009-11-05
Size: 46 flashcards
Views: 122
Textbook:
Human Communication Disorders: An Introduction (7th Edition)Created: 2009-11-05
Size: 46 flashcards
Views: 122
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Spectral Analysis
breaks down a complex sound waveform into the sum of sinusoidal oscillations and represents each oscillation in terms of its frequency and amplitude
Fundamental Frequency
Pitch frequency
Harmonics
Integer multiples of fundamental frequency
Formant Frequencies
Peak or resonant frequencies, different vowel sounds
Principle of Resonance
Vibration resulting from a snusoidal driving force is sinusoidal and of the same frequency. It is simply scaled in amplitude.
Filter function
Gives the scaling in amplitude at each frequency
resonant frequecy
frequency of sinusoidal driving force porducing maximum vibration
source
filter theory of vowel production
Speech articulators
tongue, soft palate, lips
vowel formations
airflow-glottal pulse spectrum-shape of vocal tract
consanants
airflow-constrictions in the vocal tract-air turbulance
Acoustic phonetics
study of sound waves made by the human vocal organs for communication
Immutability of speech
speech is still understood despite significant distortions(time reversed speech, filtered speech, reverberation, interrupted speech)
Why is speech inmutable?
redundancy, structure (pattern), lip reading
Importance of format transitions
tone or sine speech
categorical perception
differences among sounds that fall into different categories are exagerrated. Differences among sounds that fall into the same category are minimized.
classic view of brain
broca's area(production), Wernike's Area(comprehension)
Ways to study the brain
stimulation, clinical autopsy, neuroanatomy, imaging(structural-architecture, functional-process)
Penfield and Roberts
Stimulation of exposed brain with an electrode
Functional brain imaging
chemical actions, electrical activity, magnetic fields
Early view of the brain
Lateralization of function-different centers mediate different behaviors
contemporary view
much greater distribution of function
core features of fluency dis.
syllable or sound repetitions or prolongations
Secondary features of flu.dis.
bizarre gestures(grimaces, twitches, gaze shifts, unusual movements)
Cause of flu. Dis.
unknown and it may not have a single cause
prevelence of flu.dis
runs in families, more prevelent in males, occurs in all cultures, can be contemporary
disorder
when both speaker and listener percieve it as a problem
medical model
one should treat causes of a disease, not just symptoms
anatomical/structural deformity of head
resonance disorder, hearing disorder, dysarthria , cleft lip/palate-most common
causes of cranf an
environmental (alchohol during preg), genetic (crouzon, treacher-collins syndromes), mechanical(Pierre Roin Sequence, position of fetus in womb)
the velopharyngeal valve
failure to close-hypernasality, failure to open- hyponasality
methods of diagnosis
visual inspection, articulary analysis (listening), videoendoscopy, videofluroscopy, nasometer
videoendoscopy
small camera at end of a tube inserted through nose-views functioning larnyx and vocal tract through nasal cavity
videofluoroscopy
motion X-ray-an x-ray video of the head, barium swallow
nasometer
air pressure in oral and nasal activity
dysphagia
disorder of swallowing, symptoms
treatment for swallowing dis.
swallowing excersizes, surgery
Speech
physical production of sounds and word of a language
language
meaningthat the speaker is trying to convey
dysarthia
neurologic speech disorder involving muscle control
Apraxia
trouble coordinating speech movements, sequencing movements
Dysphonia
Hoarseness of speech
Prosody
Emphasis
vocal folds
control pitch
speech is hard to understand when...
leave silences
brain images data
chemical
magnetic
electrical
About this deck
By: Meg Perry
Textbook: Human Communication Disorders: An Introduction (7th Edition)
Created: 2009-11-05
Size: 46 flashcards
Views: 122
Textbook:
Human Communication Disorders: An Introduction (7th Edition)Created: 2009-11-05
Size: 46 flashcards
Views: 122
About StudyBlue
STUDYBLUE makes things that make you better at school.
Things like online flashcards with photos and audio.
Things like personalized quizzes and friendly reminders about when (and what) to study next.
Think of it as a digital backpack™: access to all of your study materials online and on your phone.
STUDYBLUE exists to make studying efficient and effective for every student, for free. Join us.
“Simply amazing. The flash cards are smooth, there are many different types of studying tools, and there is a great search engine. I praise you on the awesomeness.”
Dennis
Dennis