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System 1

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Rolls et al. describe the areas in which explicit (? system-2) and implicit (?system-1) decision making is done<ref>[http://www.oxcns.org/papers/495_Grabenhorst%20and%20Rolls%202011%20Value,%20pleasure,%20and%20choice%20in%20the%20ventral%20prefrontal%20cortex%20TICS.pdf Value, pleasure and choice in the ventral prefrontal cortex. Fabian Grabenhorst, Edmund T Rolls (2011) Trends in cognitive sciences 15 (2) p. 56-67]([http://www.talyaron.com/wiki/index.php?title=%D7%9E%D7%90%D7%9E%D7%A8:_Value,_pleasure_and_choice_in_the_ventral_prefrontal_cortex_-_2011 summery])</ref>. System-1 is handeld by the basal ganglia, and system-2 is handeld by the PFC<ref>Rolls, E.T. and Grabenhorst, F. (2008) The orbitofrontal cortex and beyond: from affect to decision-making. Prog. Neurobiol. 86, 216–244</ref><ref>Rolls, E.T. (2005) Emotion Explained, Oxford University Press</ref><ref>Balleine, B.W. and O’Doherty, J.P. (2010) Human and rodent homologies in action control: corticostriatal determinants of goaldirected and habitual action. Neuropsychopharmacology 35, 48–69</ref>.
==Characteristics of System 1==
* generates impressions, feelings, and inclinations; when endorsed by System 2 these become beliefs, attitudes, and intentions.
* operates automatically and quickly, with little or no effort, and no sense of voluntary control
* can be programmed by System 2 to mobilize attention when a particular pattern is detected (search)
* executes skilled responses and generates skilled intuitions, after adequate training
* creates a coherent pattem of activated ideas in associative memory
* links a sense of cognitive ease to illusions of truth, pleasant feelings, and reduced vigilance
* distinguishes the surprising from the normal
* infers and invents causes and intentions
* neglects ambiguity and suppresses doubt
* is biased to believe and confirm
* exaggerates emotional consistency (halo effect)
* focuses on existing evidence and ignores absent evidence (WYSIATI)
* generates a limited set of basic assessments
* represents sets by norms and prototypes, does not integrate ' matches intensities across scales (e.g., size to loudness)
==References==