Emotional processing in anterior cingulate and medial prefrontal cortex

心理学 前额叶皮质 扣带回前部 神经科学 认知 认知心理学 解剖 医学
作者
Amit Etkin,Tobias Egner,Raffaël Kalisch
出处
期刊:Trends in Cognitive Sciences [Elsevier]
卷期号:15 (2): 85-93 被引量:2625
标识
DOI:10.1016/j.tics.2010.11.004
摘要

Negative emotional stimuli activate a broad network of brain regions, including the medial prefrontal (mPFC) and anterior cingulate (ACC) cortices. An early influential view dichotomized these regions into dorsal–caudal cognitive and ventral–rostral affective subdivisions. In this review, we examine a wealth of recent research on negative emotions in animals and humans, using the example of fear or anxiety, and conclude that, contrary to the traditional dichotomy, both subdivisions make key contributions to emotional processing. Specifically, dorsal–caudal regions of the ACC and mPFC are involved in appraisal and expression of negative emotion, whereas ventral–rostral portions of the ACC and mPFC have a regulatory role with respect to limbic regions involved in generating emotional responses. Moreover, this new framework is broadly consistent with emerging data on other negative and positive emotions. Negative emotional stimuli activate a broad network of brain regions, including the medial prefrontal (mPFC) and anterior cingulate (ACC) cortices. An early influential view dichotomized these regions into dorsal–caudal cognitive and ventral–rostral affective subdivisions. In this review, we examine a wealth of recent research on negative emotions in animals and humans, using the example of fear or anxiety, and conclude that, contrary to the traditional dichotomy, both subdivisions make key contributions to emotional processing. Specifically, dorsal–caudal regions of the ACC and mPFC are involved in appraisal and expression of negative emotion, whereas ventral–rostral portions of the ACC and mPFC have a regulatory role with respect to limbic regions involved in generating emotional responses. Moreover, this new framework is broadly consistent with emerging data on other negative and positive emotions. evaluation of the meaning of an internal or external stimulus to the organism. Only stimuli that are appraised as motivationally significant will induce an emotional reaction, and the magnitude, duration and quality of the emotional reaction are a direct result of the appraisal process. Moreover, appraisal can be automatic and focus on basic affective stimulus dimensions such as novelty, valence or value, or expectation discrepancy, or may be slower and sometimes even require controlled conscious processing, which permits a more sophisticated context-dependent analysis. learning paradigm in which a previously neutral stimulus, termed the conditioned stimulus (CS), is temporally paired with a non-learned aversive stimulus, termed the unconditioned stimulus (US). After pairing, the CS predicts the US and hence elicits a conditioned response (CR). For example, pairing of a tone with a foot shock results in elicitation of fear behavior during subsequent responses to a non-paired tone. learning process created by repeatedly presenting a CS without pairing with an US (i.e. teaching the animal that the CS no longer predicts the US) after fear conditioning has been established. This results in formation of an extinction memory, which inhibits expression of, but does not erase, the original fear memory. specific method for explicit emotion regulation whereby a conscious deliberate effort is engaged to alter the meaning (appraisal) of an emotional stimulus. For example, a picture of a woman crying can be reappraised from a negative meaning to a positive one by favoring an interpretation that she is crying tears of joy. general process by which conflicting appraisals and response tendencies are arbitrated between to allow selection of a course of action. Typically, regulation is thought to have an element of inhibition and/or enhancement for managing competing appraisals and response tendencies.
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