Final answer:
Psychopaths show abnormal processing of emotional stimuli, as evidenced by reduced electrodermal activity, contrasting with ADHD where the main issue is difficulty in maintaining attention and impulse control.
Step-by-step explanation:
Psychopath deficits in attention indicate abnormal processing of emotional stimuli. This is highlighted in a study by Fung et al. (2005) which found reduced electrodermal activity in psychopathy-prone adolescents, suggesting a diminished response to emotional cues. This is contrasted with attention deficit hyperactivity disorder (ADHD), a neurodevelopmental disorder characterized by difficulty maintaining attention and controlling impulses, which might not necessarily involve abnormal emotional processing. It's important to note that the autonomic nervous system, which includes structures like the amygdala and hippocampus, is responsible for managing both emotional processing and bodily functions. Changes in the amygdala's function have been found in various mood and anxiety disorders, suggesting a connection between this brain structure and emotional regulation in psychological disorders.