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. Author manuscript; available in PMC: 2017 Apr 6.
Published in final edited form as: Int J Comp Psychol. 2015;28:http://escholarship.org/uc/item/8hg831n3.

Figure 1.

Figure 1

Cortico-striatal loops comprising the timing system. The “Shared Processes” box reflects other cognitive processes that have been associated with these same regions of the timing system identified in the diagram, suggesting a strong interaction between various cognitive phenomena and interval timing. SMA = supplementary motor area; PFC = prefrontal cortex; ACC = anterior cingulate cortex; PCC = posterior cingulate cortex; SNc = substantia nigra pars compacta; C/Pu = caudate/putamen; NAC = nucleus accumbens; VTA = ventral tegmental area; GPe = external segment of the globus pallidus; GPi = internal segment of the globus pallidus; TH = thalamus; STN = subthalamic nucleus.