Introduction: The negative cognitive effects of the startle response are not yet fully understood. Ecological observations in the aviation field indicate risk for severe outcomes in complex or pressured situations, while sparse previous research suggests milder negative effects on simple cognitive tasks. Neuroticism is proposed as a factor related to the level of negative effects following startle.
Methods: This study examined the effects of startle on performance in a choice reaction time task and analyzed relations between performance, neuroticism, and physiological stress.
Results: Our results indicate that reaction time directly following startle was not affected, but reaction time in subsequent trials was significantly slower. Neuroticism and physiological stress were both unrelated to this performance effect.
Discussion: We argue that higher complexity/demand tasks are necessary to complement the research on base cognitive functioning in relation to startle. If neuroticism is related to startle effects, this is more likely to be found in these higher demand situations.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9120885 | PMC |
http://dx.doi.org/10.1002/brb3.2554 | DOI Listing |
Biol Psychol
December 2024
School of Education, Tianjin University, Tianjin, China; Institute of Applied Psychology, Tianjin University, Tianjin, China; Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China. Electronic address:
Loneliness is linked to cardiovascular health, with atypical stress reactivity serving as an underlying mediator. This study aimed to investigate the association between loneliness and heart rate variability (HRV) reactivity to acute social stress in younger adults. A total of 92 participants (52 women; mean age = 22.
View Article and Find Full Text PDFFront Psychol
November 2024
Department of Psychiatry and Forensic Medicine, Faculty of Medicine, Universitat Autònoma de Barcelona, Bellaterra, Spain.
Behav Sci (Basel)
November 2024
Institute for Stress and Wellbeing Research, Department of Psychology, Toronto Metropolitan University, 350 Victoria Street, Toronto, ON M5B 2K3, Canada.
Eysenck's biopsychological model of stress posits that the extraversion-introversion distinction is associated with different thresholds of arousal, which in turn moderate the stress response. Although higher thresholds of activation have been reported in the context of physiological stress induction, more contemporary research has resulted in mixed findings. The objective of the current study was to revisit Eysenck's biopsychological model of stress by examining associations between the two personality dimensions (extraversion-introversion and neuroticism-stability) and stress reactivity in response to the Trier Social Stress Test.
View Article and Find Full Text PDFFront Microbiol
October 2024
G. Oppenheimer Center for Neurobiology of Stress and Resilience at UCLA, Los Angeles, CA, United States.
Background: Discrimination is a recognized psychosocial stressor that has been linked to various negative health outcomes. This study explored the impact of discrimination on gut health, specifically focusing on microbiome changes, predicted metagenomic differences, transcriptomic profiles, and the potential for using a multi-omic approach to predict discrimination to identify discrimination status for an individual. Methods: We conducted a comprehensive investigation involving male and premenopausal female participants, using the Everyday Discrimination Scale to classify them into either high or low discrimination.
View Article and Find Full Text PDFMedicine (Baltimore)
September 2024
Department of Orthopedics and Hand Surgery, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, Guangxi, China.
Recent observational studies have indicated that psychiatric disorders were associated with risk of bone mineral density (BMD) reduction. But the causal relationship between neuroticism and BMD remained unclear. By using public genome-wide association study data, a 2-sample bidirectional Mendelian randomization (MR) study was performed to investigate the causal relationship between neuroticism and BMD (heel BMD, forearm BMD, femoral neck BMD, lumbar spine BMD, and total body BMD).
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!