Stress and memory encoding: What are the roles of the stress-encoding delay and stress relevance?

Shields, Grant S.; Hunter, Colton L.; Yonelinas, Andrew P.

doi:10.1101/lm.053469.121

Cited by 13 publications

(4 citation statements)

References 38 publications

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“…However, we observed no overall effect of stress on episodic memory, and if anything observed a numerically opposite pattern, with the best memory performance in the Stress-Delayed group. This null finding is concordant with prior demonstrations that memory for neutral, non-stress-relevant information, such as the scene photographs in this study, is largely unaffected by pre-learning stress (Domes et al, 2004;Zoladz et al, 2011;Shields et al, 2022), suggesting that this design may not have been ideal to capture episodic memory changes.…”

Section: Stress Effects On Episodic Memorysupporting

confidence: 91%

Acute stress effects on statistical learning and episodic memory

Sherman,

Huang,

Wijaya

et al. 2024

Preprint

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Stress is widely considered to negatively impact hippocampal function, thus impairing episodic memory. However, the hippocampus is not merely the seat of episodic memory. Rather, it also (via distinct circuitry) supports statistical learning. Based on rodent work suggesting that stress may impair the hippocampal pathway involved in episodic memory while sparing or enhancing the pathway involved in statistical learning, we developed a behavioral experiment to investigate the effects of acute stress on both episodic memory and statistical learning in humans. Participants were randomly assigned to one of three conditions: stress (socially evaluated cold pressor) immediately before learning, stress ~15 minutes before learning, or no stress. In the learning task, participants viewed a series of trial-unique scenes (allowing for episodic encoding of each image) in which certain scene categories reliably followed one another (allowing for statistical learning of associations between paired categories). Memory was assessed 24h later to isolate stress effects on encoding/learning rather than retrieval. We found modest support for our hypothesis that acute stress can amplify statistical learning: only participants stressed ~15 minutes in advance exhibited reliable evidence of learning across multiple measures. Further, stress-induced cortisol levels predicted statistical learning retention 24h later. In contrast, episodic memory did not differ by stress condition, though we did find that acute stress promoted memory for statistically predictable information and attenuated competition between statistical and episodic encoding. Together, these findings provide initial insights into how stress may differentially modulate learning processes within the hippocampus.

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Section: Stress Effects On Episodic Memorysupporting

confidence: 91%

Acute stress effects on statistical learning and episodic memory

Sherman,

Huang,

Wijaya

et al. 2024

Preprint

View full text Add to dashboard Cite

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“…Human studies indicated that lower levels of stress during or prior to learning may facilitate the encoding of declarative memories (Domes et al, 2002; Smeets et al, 2007). It has also been suggested that relevance of the information learned to the stressor may modulate the effects of stress on memory encoding (Shields et al, 2022). In this context, the effects of stress are observed to be stronger for emotional/arousing information as compared to neutral information (Schwabe et al, 2008; Zoladz et al, 2011).…”

Section: Stress and Cholinergic Shpmentioning

confidence: 99%

Septohippocampal cholinergic system at the intersection of stress and cognition: Current trends and translational implications

Kniffin

Bangasser

Parikh

2023

Eur J of Neuroscience

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Deficits in hippocampus‐dependent memory processes are common across psychiatric and neurodegenerative disorders such as depression, anxiety and Alzheimer's disease. Moreover, stress is a major environmental risk factor for these pathologies and it exerts detrimental effects on hippocampal functioning via the activation of hypothalamic–pituitary–adrenal (HPA) axis. The medial septum cholinergic neurons extensively innervate the hippocampus. Although, the cholinergic septohippocampal pathway (SHP) has long been implicated in learning and memory, its involvement in mediating the adaptive and maladaptive impact of stress on mnemonic processes remains less clear. Here, we discuss current research highlighting the contributions of cholinergic SHP in modulating memory encoding, consolidation and retrieval. Then, we present evidence supporting the view that neurobiological interactions between HPA axis stress response and cholinergic signalling impact hippocampal computations. Finally, we critically discuss potential challenges and opportunities to target cholinergic SHP as a therapeutic strategy to improve cognitive impairments in stress‐related disorders. We argue that such efforts should consider recent conceptualisations on the dynamic nature of cholinergic signalling in modulating distinct subcomponents of memory and its interactions with cellular substrates that regulate the adaptive stress response.

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“…Memory encoding follows central or peripheral paths [24]. The central path is associated with the frontal cortex of the brain and results in the intentional, effortful, rational, and conscious processing of information [25,26]. Information processed centrally tends to last longer in the memory system of the individual [27].…”

Section: Memory Encodingmentioning

confidence: 99%

Determinants of Memory Encoding of Altruistic Messages: M-Delphi and F-DEMATEL Approach

Liao

2023

Applied Sciences

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One of the key challenges of non-profit organizations is the effective communication of values beneficial to society, such as altruism. Communication can be deemed effective if the message is memory encoded by the recipient. This paper applies social cognitive theory to analyze the determinants of the memory encoding of altruistic messages transmitted to audiences via television. The data were analyzed by the modified Delphi [M-Delphi) and Fuzzy Decision-Making Trial and Evaluation Laboratory [F-DEMATEL). The researchers initially proposed ten factors, and two factors were added after the first Delphi round. The analysis revealed three causal factors and four effect factors. The findings provide several contributions to communication literature. They also provide managerial implications for managers in non-profit organizations on the effective communication of altruism.

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Stress and memory encoding: What are the roles of the stress-encoding delay and stress relevance?

Cited by 13 publications

References 38 publications

Acute stress effects on statistical learning and episodic memory

Acute stress effects on statistical learning and episodic memory

Septohippocampal cholinergic system at the intersection of stress and cognition: Current trends and translational implications

Determinants of Memory Encoding of Altruistic Messages: M-Delphi and F-DEMATEL Approach

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