9-ADHD

Question 1

Hallmarks of ADHD

Answer 1

Inattention
Hyperactivity
Impulsivity

Question 2

Predominantly Inattentive ADHD

Answer 2

6 symptoms in inattention category, not the other

Question 3

Predominantly Hyperactive-Impulsive

Answer 3

6 symptoms in hyperactivity/impulsivity category, not the other

Question 4

Combined Type ADHD

Answer 4

6 symptoms across 2 types of categories

i.e 3 in each

Question 5

Hyperactivity

Answer 5

Motor control

i.e. can’t sit still

Question 6

Impusivity

Answer 6

i.e Not waiting turn to speak

Question 7

ADHD- MRI Results

Answer 7

Reduced total brain and grey matter

Reduced cortical volume in PFC, occipital, parietal loe

White matter results are inconsistent

Question 8

ADHD- fMRI Results for Motor Inhibition

Answer 8

Reduced function in

Basal ganglia, cortex (

Question 9

ADHD- fMRI Results for WM

Answer 9

Frontoparietal cortex

Insula (involved in self awareness)

Question 10

ADHD- fMRI Results for Attention

Answer 10

PFC
Thalamus
Basal ganglia

Question 11

NE and ADHD

Answer 11

More important for executive functions (WM, impusle inhibition, planning)

Higher levels seen in ADHD

Question 12

DA and ADHD

Answer 12

Important for maintaining attention

Increased DAT levels involved in ADHD (higher uptake)