Krendl Anne C, Heatherton Todd F, Kensinger Elizabeth A
Department of Psychology, Tufts University, Medford, MA 02155, USA.
Psychol Aging. 2009 Sep;24(3):530-41. doi: 10.1037/a0016065.
Cognitive capacity is believed to decline with age, but it is not known whether this decline extends to tasks involving social cognition. In the current study, social neuroscience methodologies were used to examine the effects of age-related cognitive decline on older adults' abilities to engage regulatory mechanisms (which are typically impaired by normal aging) to inhibit negative reactions to stigmatized individuals. Older and young adults were presented with images of stigmatized individuals (e.g., individuals with amputations, substance abusers) and of normal controls while they underwent functional magnetic resonance imaging. All participants were also given a battery of tests to assess their executive function capacity. Young adults showed more activity in areas associated with empathy (i.e., medial prefrontal cortex) than did older adults when viewing stigmatized faces. By contrast, older adults with relatively preserved levels of executive function had heightened activity in areas previously implicated in emotion regulation (i.e., lateral prefrontal cortex) as compared to other groups. These results suggest that although cognitive decline may interfere with older adults' attitudes toward stigmatized individuals, older adults with relatively preserved cognitive function may utilize different strategies to compensate for these deficits.
认知能力被认为会随着年龄的增长而下降,但目前尚不清楚这种下降是否会延伸至涉及社会认知的任务。在当前的研究中,社会神经科学方法被用于检验与年龄相关的认知衰退对老年人运用调节机制(通常会因正常衰老而受损)抑制对受污名化个体的负面反应能力的影响。在进行功能磁共振成像时,向老年人和年轻人展示受污名化个体(如截肢者、药物滥用者)以及正常对照者的图像。所有参与者还接受了一系列测试以评估他们的执行功能能力。与老年人相比,年轻人在观看受污名化面孔时,与同理心相关的区域(即内侧前额叶皮层)表现出更多的活动。相比之下,执行功能水平相对保留的老年人与其他组相比,先前涉及情绪调节的区域(即外侧前额叶皮层)活动增强。这些结果表明,尽管认知衰退可能会干扰老年人对受污名化个体的态度,但认知功能相对保留的老年人可能会采用不同的策略来弥补这些缺陷。