Resilience to fear: The role of individual factors in amygdala response to stressors

Fonseca, Rosalina; Madeira, Natália; Simões, Carla

doi:10.1016/j.mcn.2020.103582

Cited by 12 publications

(11 citation statements)

References 220 publications

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“…Interestingly, our fear conditioning results suggest that NE housed animals show lower fear responses, which can be interpreted as a protective effect of stress (Fonseca et al, 2021). To our This document is copyrighted by the American Psychological Association or one of its allied publishers.…”

Section: Discussionmentioning

confidence: 56%

“…Hand in hand with behavioral flexibility goes resilience, which refers to the ability to deal effectively with stress (Liberzon & Knox, 2012). External factors (i.e., environmental conditions) can alter the perception and response to adverse situation and act as protective or risk factor for stress (Fonseca et al, 2021). To mitigate the effects of environmental factors, laboratory animals are housed in controlled environments (Gaskill & Garner, 2017).…”

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confidence: 99%

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Naturalistic housing condition promotes behavioral flexibility and increases resilience to stress in rats.

Caratti,

Crestani,

Luft

et al. 2024

Behavioral Neuroscience

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Section: Discussionmentioning

confidence: 56%

mentioning

confidence: 99%

Naturalistic housing condition promotes behavioral flexibility and increases resilience to stress in rats.

Caratti,

Crestani,

Luft

et al. 2024

Behavioral Neuroscience

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“…Limited by experiment times and interference from individual differences, in order to avoid excessive experimental errors, the extraction results of PSCs of seven subjects are presented one by one, instead of using the average method for analysis, because some individual differences might be caused by differences in psychological and physiological effects among individuals. 45,46 By eliminating individual outliers, experimental results of most subjects were selected for analysis. Finally, the PSC results of the ROI-AMYG and sub-ROIs-AMYG under the stimulation of the same contact pressure of all kinds of samples are obtained as shown in Table 4 and Figure 4.…”

Section: Results and Discussion Of Pscs In The Roi-amyg And Sub-rois-...mentioning

confidence: 99%

Brain signal changes of the amygdala cortex according to the physical performance of fabric

Yuan

Wang

Shang

et al. 2022

Textile Research Journal

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The physical properties of fabric causing an uncomfortable tactile perception under certain clothing pressure has always been a difficult problem in the field of fabric comfort research. According to a large number of works in the literature, the amygdala was recognized as the key brain region for negative perceived emotions. In order to investigate the fabric factors causing the signal changes in the amygdala brain region, functional magnetic resonance imaging was used to monitor the amygdala brain region and its anatomical sub-brain region under the same degree of compression stimulation from several different corsets, and the percent signal changes (PSCs) were extracted and analyzed. The results showed that there was a significant positive correlation between the PSCs of the centromedial group of the amygdala and the average dynamic friction coefficient (MIU) of the fabric at the level of 0.05, and a general linear model was established ( R2 = 0.998, p = 0.019). These results indicated that the surface friction properties of the fabric successfully attracted the attention of the central amygdala, and the attention increased linearly with the increase of MIU. This finding not only laid a foundation for exploring the brain perception mechanism of fabric discomfort, but also provides a possibility for further quantification of fabric discomfort perception by using the amygdala brain region.

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“…People’s perception of their environmental stressors is determined by external factors (objective and substantial environmental changes; Hobfoll, 1988) and internal factors (e.g., coping capability, resilience, self-efficacy, psychological strengths, confidence, and culture; Fonseca et al, 2021). When environmental stressors occur suddenly, people’s perceptions based on external factors may be affected immediately, whereas perceptions based on internal factors remain relatively stable, because internal factors are the demonstration of individuals’ trait-level responses shaped by their past-accumulated experience.…”

Section: Discussionmentioning

confidence: 99%

The effects of cataclysm-related stress on rumination patterns: The case of COVID-19.

Shen¹,

Park‐Taylor²

2022

Professional Psychology: Research and Practice

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Despite a demonstrated association between rumination and everyday stress, there is a paucity of research on how cataclysm-related stress impacts the two subtypes of rumination (brooding and reflection). Beginning in March of 2020, the Coronavirus Disease-2019 (COVID-19) swiftly spread across the world, causing great tension and threat to peoples' lives. The present study examined whether and how rumination status (brooding and reflection) was affected by the COVID-19 pandemic, from the perspectives of environmental stressors and perceived intrinsic stress. This study applied a cross-sectional design based on current and retrospective memories regarding participants' experiences of rumination, stress and anxiety. A total of 101 adults from the New York metropolitan area completed surveys that measure rumination, environmental stressors, perceived intrinsic stress, and anxiety symptoms based on their current experience during the cataclysmic event of COVID-19 and their recalled experience before the pandemic. Results indicated that changes in the environmental stressors significantly predicted changes in participants' engagement in reflection, but not in brooding, while changes in the levels of perceived intrinsic stress significantly predicted changes in brooding, but not in reflection. It was also found that rumination moderated the effects of external stressors on anxiety symptoms. Clinical interventions that reduce brooding activities and modify reflection activities could help individuals cope with the stress of a cataclysmic event in different ways. Public Significance StatementResults of this COVID-19-focused study indicated that changes in environmental stressors significantly predicted changes in participants' reflection activity, but not in brooding, while changes in levels of perceived intrinsic stress significantly predicted changes in brooding, but not in reflection. These results point to the need for clinical interventions that reduce brooding activities and modify reflection activities to help individuals cope with the stress of a cataclysmic event.

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Resilience to fear: The role of individual factors in amygdala response to stressors

Cited by 12 publications

References 220 publications

Naturalistic housing condition promotes behavioral flexibility and increases resilience to stress in rats.

Naturalistic housing condition promotes behavioral flexibility and increases resilience to stress in rats.

Brain signal changes of the amygdala cortex according to the physical performance of fabric

The effects of cataclysm-related stress on rumination patterns: The case of COVID-19.

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