Table 2.

Summary of the differential effects of MPH treatment on control and Mn-exposed animals across the range of behavioral responses in the selective attention baseline and selective attention tasks grouped under measures of impulsivity/compulsivity and attention. Arrow indicates direction of significant MPH effect (i.e., p ≤ 0.05) to increase (↑) or decrease (↓) the specific response type, followed by whether the effect may be considered beneficial (pos) or detrimental (neg) in parentheses. Lateral arrows (←→) indicate no measurable effect. See text for details.

	MPH effect on behavioral responses
	Impulsive/compulsive				Attention
Treatment	Premature		Perseverative		Accuracy		Omissions
Control	↑	(neg)	↑	(neg)	←→		←→
Mn-exposed	↓	(pos)	↓	(pos)	↓	(neg)	↑	(neg)