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The '''anterior cingulate cortex''' (ACC) is the frontal part of the [[cingulate cortex]], that resembles a "collar" form around the [[corpus callosum]], the fibrous bundle that relays neural signals between the right and left [[cerebral hemisphere]]s of the brain. It consists of Brodmann areas 24, 32 and 33. It appears to play a role in a wide variety of [[Autonomic nervous system|autonomic]] functions, such as regulating blood pressure and heart rate, as well as rational cognitive functions, such as reward anticipation, [[Decision Making|decision making]], empathy<ref>http://ccare.stanford.edu/node/89</ref> and emotion.<ref>Decety, J., & Jackson, P.L. (2004). The functional architecture of human empathy. Behavioral and Cognitive Neuroscience Reviews, 3, 71-100.</ref><ref>Jackson P.L., Brunet E., Meltzoff A.N., Decety J., 2006 Empathy examined through the neural mechanisms involved in imagining how I feel versus how you feel pain: An event-related fMRI study, ''Neuropsychologia'', 44, pp. 752–61</ref>
In decision making it is thought to detect conflicts between two deductions<ref>[http://www.nature.com/neuro/journal/v10/n10/abs/nn1979.html Neurocognitive correlates of liberalism and conservatism, 2007, Amodio et al. Nature neuroscience] ([http://www.talyaron.com/wiki/index.php?title=Neurocognitive_correlates_of_liberalism_and_conservatism_2007 Summery in Hebrew])</ref> and evaluating the rewards of actions<ref>[http://www.nature.com/neuro/journal/v9/n7/abs/nn1724.html Kennerley et al., Optimal decision making and the anterior cingulate cortex, Nature Neuroscience 9, 940 - 947 (2006)] </ref>. On the integration of these finding please read this [http://www.lamsade.dauphine.fr/~mousseau/pmwiki-2.1.5/uploads/Bibliographie/13.pdf article].
[[File:Gray727 anterior cingulate cortex.png|thumb|alt=Medial surface of left cerebral hemisphere, with anterior cingulate highlighted.|Medial surface of left cerebral hemisphere, with anterior cingulate highlighted.]]