Test 2 Flashcards
What does a general theory do?
Describes behaviors, contributing factors, course (figment of author’s imagination)
3 types of stuttering theories
biological, psychological, integrated
challenges for stuttering theories
stuttering at onset, change over time, inconsistent (episodic), ethical limitations
Charles Van Riper’s story
learn how to stutter
psychoemotional basis of stuttering in 20s-50s
trauma, emotional disturbance, personality
what is a manifestation?
block, repetition, prolongation
psychoemotional and anxiety
Greiner: higher anxiety for PWS; Craig: higher state[response to st]/trait anxiety; Craig: greater anxiety for PWS; Guitar: reactive temperament may predispose child to stutter; Hauner: sensitivity for all w/ comm. disorders
anxiety and st.: Ezrati-Vincour and Levin (2004)
trait anxiety higher for PWS; state anxiety increases with stuttering severity; authors say to assess state anxiety to see which situations trigger; however, all PWS in study were seeking tx (more likely to stutter)
psychobehavioral
theories
classical conditioning: Pavlov
stimulus (paired with something) and reaction; for people who stutter, a situation or person can be what’s paired with stuttering to produce the anxiety reaction
operant conditioning: Skinner
positive reinforcement, negative reinforcement, punishment/extinction (eventually stop working without reinforcement)
diagnosogenic theory (still psychobehavioral)
anticipatory apprehensive hypertonic avoidance reaction; parents disapproval and labeling of stuttering (after normal disfluency) causes the child anxiety, which leads to tension, and then stuttering, which becomes more severe with more disapproval; parents blamed; harmful b/c then wouldn’t seek therapy
more psychobehavioral theories
conflict (approach-avoidance): Sheehan–tx leads to master y over FEAR so approach can increase–competing desires to speak and hold back lead to maladaptive behaviors
more
two-factor: Brutten & Shoemaker: classical and operant conditioning; tx to reduce ANXIETY and desensitize; stuttering as involuntary byproduct of anxiety
more
demands and capacities: Starkweather: tx to reduce demand because the system breaks down when the task demand is too high, as is the case for speech sometimes; capacity may be good with normal demands (so situational)
psycholinguistic theory
retrieval and assembly of ling. components overwhelm the system (relative/related example); tx to slow down; Covert Hypothesis example of this
Covert Repair Hypothesis: Postma and Kolk
based on perceptual loop theory (Levelt), where you have phonological issues which you process when you are saying something, and then try to repair the future damage during or before it comes out; external loops–internal for speaker (processing), external for listener
more CRH
disfluencies are byproducts of covert repairs of internal speech errors as soon as error is detected, speech halted to repair error–comes out as stuttering as opposed to repair; fillers may be used to help listener understand the repair and hold your turn; prolongations as repair before continuant; blocks as problem on initial sound; CWS have lesser capacity during artic./lang. growth
psychological theories
psychoemotional: anxiety; psychobehavioral: classical, operant conditioning, diagnosogenic; psycholinguistic: perceptual loop, covert repair
biological theories
genetic, neurophysiological, physiological
Drayna et al. genetic study of families in Cameroon found
40/100 family members are PWS; chromosome 3 and 12 mutations
genetics
not sure what is transmitted, but could be structural anomalies, biochemical pathways, brain processing, motor skills, temperament, etc.
neurophysiological
- cerebral dominance theory, which was debunked (handedness related to leader hemisphere–lefties stuttered bc RH more activated); 2. auditory processing, relevant, since deaf population has lower stuttering, and researchers showed decreased stutter in noise condition (Shane), defect in feedback loop, and lagging feedback