2.3.1 - What is "behavioural inhibition" and how does it relate to ADHD?

Question 1

What does Barkleys model say?

Answer 1

Children with ADHD have a deficit in behavioural inhibition due to developmental delay or injury

They have trouble self regulating

Seondary deficits in executive functions (ie - internally guided and regulated behaviour across time and towards future events.

Question 2

What are the executive function deficits Barkley identified in those with ADHD?

Answer 2

self-directed behaviors, such as working memory, inner speech, and self-regulation of emotions.

Question 3

What are the three biological components to the behavioural inhibition system?

Three ‘I’s’

Answer 3

INHIBITION of prepotent response - ability to not do a previously reinforced behaviour, or a behaviour where reinforcement is immediately available (e.g. - marshmallow test)

INTERRUPTION of ongoing response - stop doing things that aren’t effective

INTERFERENCE control - not get interrupted by distractions

Question 4

Three areas that interact in behavioural inhibition are:

Answer 4

BAS, BIS, NAS

Behavioural Activation System (cues for reward)
Behavioural Inhibition System (cues for punishment)
Nonspecific Arousal System (increases intensity of behaviour)