FIGURE 5

Schematic illustrations of putative neural circuits of behavioral flexibility (A), selective attention (B), sustained attention (C), and impulse control (D). For detailed explanations see text. PFC, prefrontal cortices; MD Thalamus, medial dorsal thalamus; NAc, nucleus accumbens; DA, dopamine; 5-HT, 5-hydroxytryptamine (serotonin); ITC, infero-temporal cortex; V1, primary visual cortex (striate cortex); PPTN, pedunculopontine tegmental nucleus; SNc, substantia nigra pars compacta; nAChR, nicotinic acetylcholine receptor; mAChR, muscarinic acetylcholine receptor; LGN, lateral geniculate nucleus; PN, pulvinar nucleus; SC, superior colliculus; 5-CSRTT, 5-choice serial reaction time task; Ach, acetylcholine VTA, ventral tegmental area; ACC, anterior cingulate cortex; IFL cortex, infralimbic cortex; Glu, glutamate. Key: green lines, dopamine; orange lines, gluatamate; blue lines, acetylcholine; red lines, 5-HT; black dashed lines, multiple neurotransmitter pathways. Light green structures, cortical regions; orange structures, thalamic regions; light blue, basal ganglia/striatal (ventral and dorsal structures) regions; dark blue, brainstem structures; white, limbic structures; purple, other.