Longtime speculations that there is insufficient catecholamine activity in the brains of individuals with ADHD have been supported with the observation that adults diagnosed with ADHD have a higher density of _____________ transporters.
A)serotonin
B)GABA
C)dopamine
D)acetylcholine

Question

Quizplus · Accepted Answer

The correct answer is dopamine. The observation that adults diagnosed with ADHD have a higher density of dopamine transporters supports the speculation of insufficient catecholamine activity, specifically dopamine, in the brains of individuals with ADHD. Dopamine transporters regulate the reuptake of dopamine from the synaptic cleft, and a higher density of these transporters could lead to reduced dopamine availability, aligning with the hypothesis of reduced catecholaminergic activity in ADHD.

Longtime Speculations That There Is Insufficient Catecholamine Activity in the Brains