Departamento de Psicología Básica, Clínica y Psicobiología, Universitat Jaume I, Castellón de la Plana, Spain.
Soc Cogn Affect Neurosci. 2010 Mar;5(1):18-28. doi: 10.1093/scan/nsq012. Epub 2010 Feb 10.
The reinforcement sensitivity theory (RST) proposed the behavioral activation system (BAS) as a neurobehavioral system that is dependent on dopamine-irrigated structures and that mediates the individual differences in sensitivity and reactivity to appetitive stimuli associated with BAS-related personality traits. Theoretical developments propose that high BAS sensitivity is associated with both enhanced appetitive stimuli processing and the diminished processing of aversive stimuli. The objective of this study was to analyze how individual differences in BAS functioning were associated with brain activation during erotic and aversive picture processing while subjects were involved in a simple goal-directed task. Forty-five male participants took part in this study. The task activation results confirm the activation of the reward and punishment brain-related structures while viewing erotic and aversive pictures, respectively. The SR scores show a positive correlation with activation of the left lateral prefrontal cortex, the mesial prefrontal cortex and the right occipital cortex while viewing erotic pictures, and a negative correlation with the right lateral prefrontal cortex and the left occipital cortex while viewing aversive pictures. In summary, the SR scores modulate the activity of the cortical areas in the prefrontal and the occipital cortices that are proposed to modulate the BAS and the BIS-FFFS.
强化敏感性理论（RST）提出了行为激活系统（BAS），作为一个依赖多巴胺灌溉结构的神经行为系统，它介导了个体对与 BAS 相关的人格特质相关的奖赏刺激的敏感性和反应性的差异。理论发展提出，高 BAS 敏感性与增强的奖赏刺激处理以及对厌恶刺激处理的减弱有关。本研究的目的是分析 BAS 功能的个体差异如何与在进行简单的目标导向任务时观看色情和厌恶图片时的大脑激活相关联。45 名男性参与者参加了这项研究。任务激活结果证实了在观看色情和厌恶图片时，与奖励和惩罚相关的大脑结构的激活。SR 评分与观看色情图片时左侧外侧前额叶皮层、内侧前额叶皮层和右侧枕叶皮层的激活呈正相关，与观看厌恶图片时右侧外侧前额叶皮层和左侧枕叶皮层的激活呈负相关。总之，SR 评分调节了被认为调节 BAS 和 BIS-FFFS 的前额叶和枕叶皮质的皮质区域的活动。
