Disordered Communication

1
Disordered Communication

• Much can go wrong!

2
Etiology

• Congenital vs. acquired
• Time of disorder
• Functional vs. organic
• Cause of disorder

3
Disorders vs. differences

• Cultural and regional dialects affect phonology,
  morphology, syntax, semantics and pragmatics
• Rules vary within dialects from
• the standard. Differences are
• not disorders!

4
Language disorders

• Disorders of form
• phonology, morphology, syntax
• Disorders of content
• semantics
• Disorders of use
• pragmatics

5
Receptive vs. expressive

• Receptive disorders
• Affect comprehension of language
• Expressive disorders
• Affect production of language

6
Speech disorders

• Articulation
• Apraxia vs. dysarthria
• Fluency
• Developmental disfluency vs.stuttering
• Voice
• Phonation vs. resonance

7
Hearing disorders

• Deafness
• Hard of hearing
• Central auditory processing (CAP)

8
What is normal?
9
Prevalence of communciation disorders

• Prevalence is how many within a population have a
  problem at a given point of time
• Incidence is how many within a population have
  ever had that problem

10
Prevalence

• 17 of the U.S. population have a communication
  disorder of some type
• 11 have hearing disorder
• 6 have speech or language disorder
• 3 have a swallowing disorder