Dissociable Medial Temporal Lobe Contributions to Social Memory

Somerville, Leah H.; Wig, Gagan S.; Whalen, Paul J.; Kelley, William M.

doi:10.1162/jocn.2006.18.8.1253

Cited by 44 publications

(33 citation statements)

References 63 publications

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“…Furthermore, the amygdala has more generally been shown to play a role in memory for social materials. For instance, Somerville and colleagues (2006), showed that face-behavior memory was strongly supported by the amygdala, but only when the behaviors were affectively rich. Further, Cassidy and Gutchess (2012b) found that cortical volume of the amygdala was tied to memory performance for face-trait pairs in healthy older adults, whereas hippocampal volume was not.…”

Section: Discussionmentioning

confidence: 99%

Similarity to the self influences cortical recruitment during impression formation

Leshikar

Cassidy

Gutchess

2015

Cogn Affect Behav Neurosci

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Prior work has shown that whether or not someone is similar to the self influences person memory—a type of self-reference effect for others. In this study, we were interested in understanding the neural regions supporting the generation of impressions and subsequent memory for targets who vary in similarity to the self. Participants underwent fMRI scanning while forming positive or negative impressions of face-behavior pairs. We tested participants’ memory for their generated impressions, and then back-sorted the impression trials (encoding) into different levels of self-similarity (high, medium, low) using a self-similarity post-test that came after recognition. Extending prior behavioral work, our data confirmed our hypothesis that memory would be highest for self-similar others and lowest for self-dissimilar others. Dorsal anterior cingulate cortex (dACC) activity increased with self-similarity (high > medium > low) to targets, regardless of later memory for them. An analysis of regions supporting impression memory revealed a double dissociation within medial temporal lobe regions: for similar others, amygdala recruitment supported memory, whereas for dissimilar others, hippocampal activation supported memory. These results suggest that self-similarity influences evaluation and memory for targets, but also affects the underlying neural resources engaged when thinking about others who vary in self-similarity.

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Section: Discussionmentioning

confidence: 99%

Similarity to the self influences cortical recruitment during impression formation

Leshikar

Cassidy

Gutchess

2015

Cogn Affect Behav Neurosci

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“…Pilot data from young and older adults was used to assign 48 male faces (24 young/24 older adults) drawn from the PAL database (Minear & Park, 2004) and 48 behaviors (24 positive/24 negative) drawn from a larger dataset (Somerville, Wig, Whalen, & Kelley, 2006) to conditions. Faces of each age group were evenly categorized as trustworthy, average, and untrustworthy.…”

Section: Methodsmentioning

confidence: 99%

Influences of appearance-behaviour congruity on memory and social judgements

Cassidy

Gutchess

2014

Memory

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Prior work shows that appearance-behavior congruity impacts memory and evaluations. Building upon prior work, we assessed influences of appearance-behavior congruity on source memory and judgment strength to illustrate ways congruity effects permeate social cognition. We paired faces varying on trustworthiness with valenced behaviors to create congruent and incongruent face-behavior pairs. Young and older adults remembered congruent pairs better than incongruent, but both were remembered better than pairs with faces rated average in appearance. This suggests that multiple, even conflicting, valenced cues improve memory over receiving fewer cues. Consistent with our manipulation of facial trustworthiness, congruity effects were present in the strength of trustworthiness-related but not dominance judgments. Subtle age differences emerged in congruity effects when learning about others, with older adults showing effects for approach judgments given both high and low arousal behaviors. Young adults had congruity effects for approach, prosociality, and trustworthiness judgments, given high arousal behaviors only. These findings deepen our understanding of how appearance-behavior congruity impacts memory for and evaluations of others.

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“…Along this idea, Sakaki et al (2012) suggested that while processing biologically emotional stimuli is automatic, mediated by increased activity in and connectivity between AMY and visual cortex, processing socially emotional stimuli also depends on more elaborative processes involving enhanced activity in and connectivity between AMY and medial PFC. The involvement of AMY and medial/orbital PFC regions in complex social functions, such as interpreting and monitoring affective reactions or processing reward and punishment, have been recently revealed in neuroimaging studies of emotional memory encoding and retrieval of information having social connotation (e.g., Harvey et al, 2007;Somerville, Wig, Whalen, & Kelley, 2006;Tsukiura & Cabeza, 2008). Emotional Memory Encoding.…”

Section: Interplays Among Amy Mtl Pfc and Other Emotion Processing mentioning

confidence: 99%

“…The involvement of AMY and memory-related MTL regions together with the engagement of the PFC have been revealed not only during encoding but also during retrieval. First, AMY seems sensitive to faces associated with social descriptors (Somerville et al, 2006). Second, increased activity in and interactions between AMY and HC have been observed for socially induced memory errors during retrieval (Edelson, Sharot, Dolan, & Dudai, 2011), suggesting that social interaction could have long lasting effects on memory through AMY-HC mechanisms.…”

Section: Interplays Among Amy Mtl Pfc and Other Emotion Processing mentioning

confidence: 99%

Neural Correlates of Emotional Memories: A Review of Evidence From Brain Imaging Studies

Dolcos

Denkova

Dolcos

2012

An International Journal of Psychological Sciences

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What are the neural markers of encoding and retrieving emotional events with increased efficacy? In recent years, this question has captured the attention of cognitive neuroscientists who fervently engaged in addressing it using a multitude of approaches. The present review discusses evidence from brain imaging studies investigating the neural correlates of the memory-enhancing effect of emotion in healthy human participants. The available evidence points to two main mechanisms: one direct involving the medial temporal lobe (MTL), and the other indirect involving the prefrontal cortex (PFC), among other brain regions. Recent studies also showed that these mechanisms are sensitive to aspects relevant to social interactions, as well as to personality-, sex-and age-related differences. Overall, this evidence provides insights into the brain mechanisms that make emotional memories special, and points to possible alterations that could lead to negative affective biases in encoding and remembering emotional memories observed in affective disorders.

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Dissociable Medial Temporal Lobe Contributions to Social Memory

Cited by 44 publications

References 63 publications

Similarity to the self influences cortical recruitment during impression formation

Similarity to the self influences cortical recruitment during impression formation

Influences of appearance-behaviour congruity on memory and social judgements

Neural Correlates of Emotional Memories: A Review of Evidence From Brain Imaging Studies

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