Stammering Flashcards
Difference between dysfluency and disfluency
Dis- normal non fluency
Dys- disorder
Male to female ratio of stammering
4:1
What model is often used to look at the personal factors, activity limitation, participation and environmental factors of stammering
Yaruss and Queasal 2006
Name 3 forms stammering can take
Repetitions
Prolongations
Blocks
What is a block?
Stoppage of air/voice or articulators
Name some behaviours that are not considered to be stammering
Repetition of multisyllabic word eg “mummy mummy mummy”
Pauses
Revisions
Name some escape and avoidance behaviours
Fillers eg- well actually
Eye blinks
Head jerks
Avoidance of sounds/ words/ situations
Who’s model is the ice burg
Sheehan 1970
Describe the overt and covert parts of the iceberg
Overt- what we can hear and see
Stammered speech
Some secondary behaviours
Covert- thoughts about stammering and self
Feelings
Some secondary behaviours eg avoiding words
Describe the macro and micro environmental factors
Macro- support and relationships
Professionals eg teachers
Attitude of society
Micro- specific speaking situations eg phone calls
With reference to literature describe participation restriction in schools
Daniels et al 2012- more likely to be rejected by peers
What is the conflict theory?
Sheehan 1970
Conflict between identifying as a fluent speaker and identifying as a person who stammers
Describe the genetic theory of stammering with literature
Runs in families
Males more at risk
Yairi 1992- 66.3% participants had positive history
Describe the brain structure and function theory of stammering
Some changes in brain imaging
Impairment of left hemisphere
Some children have the ability to switch speech to right side of brain
Describe the basal ganglia theory of stammering
Basal ganglia is processing unit
Causes movement of speech to be triggered
Disorder- motor initiation problem
BG sends pulse to cortex to release mvmt if the pulse is weak- stammer?
Noisy background - cluttering?
Describe sensorimotor deficits theory of stammering
PWS impaired on speech and non speech motor tasks
Articulatory discoordination during fluent speech- eg more slowly
Affected by syntactic complexity - more complex task puts more demand on individual
Describe Levelts monitoring loops
Internal loop- before preverbal plan generated
After phonetic plan
External loop- after speech articulated
Describe the vicious circle hypotheses
Vasic and Wijnen 2005
PWS do so because they are trying to avoid it
What environmental factors could affect stammering?
rapid speech rate
Competition for speaking
Frequent interruptions
Complex syntax
What are the linguistic and physiological aspects of Palins multifactorial model
Linguistic- syntactic complexity - language and phonology skills Physiological- genetics - basal ganglia - gender
Describe the demands and capacities model
Starkweather (1987)
Capacities- what the system can offer
Demands- what tasks the system needs to perform
Stammering occurs when demands exceed capacities
With reference to literature describe the features of normal dysfluency, borderline stammering and beginning stammering
Guitar 1998,2006 Normal- <10/100 words stammered Borderline - 10/100 Beginning - rapid/ irregular blocks Some secondary behaviours Aware
Describe intermediate and advanced stammering
Intermediate- blocks in which sound and airflow are cut off Escape and avoidance behaviours Fear/ frustration Advanced- long tense block Escape and avoidance Negative self concept
What are some risk factors for persistent stammering
Being male 12> since onset Relative who stammers Anxious temperament Phonological problems