{"title":"When social comparison works as a demotivator: Stronger peers mitigate effort levels.","authors":"David Framorando, Delia J Perozzo","doi":"10.1016/j.ijpsycho.2024.112493","DOIUrl":"10.1016/j.ijpsycho.2024.112493","url":null,"abstract":"<p><p>The present study tested the effect of social comparison on effort-related cardiovascular responses. Specifically, we investigated how effort levels are influenced when individuals compare themselves to significantly better peers versus similar or slightly better peers. 43 participants played five-minute video games while displaying the scores of peers who were similar, slightly better, or significantly better, in addition to a control condition without peer scores. Effort-related cardiovascular responses were measured using the pre-ejection period during both game and baseline conditions. Results revealed that the pre-ejection period was stronger when participants competed with peers who were similar or slightly better compared to those who were significantly better or in the control condition. These findings highlight the role of social comparison in modulating effort-related cardiovascular responses, emphasizing the moderating role of the ability gap between the individual and the comparison source on the effect of social comparison on effort.</p>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":" ","pages":"112493"},"PeriodicalIF":2.5,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142883607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Frank P M Schilder, Antoin D de Weijer, Koen Levels, Bastiaan Bruinsma, Elbert Geuze
{"title":"The effects of acute operational stress and passive heat stress on physiological and subjective stress responses in military personnel.","authors":"Frank P M Schilder, Antoin D de Weijer, Koen Levels, Bastiaan Bruinsma, Elbert Geuze","doi":"10.1016/j.ijpsycho.2024.112491","DOIUrl":"https://doi.org/10.1016/j.ijpsycho.2024.112491","url":null,"abstract":"<p><p>Military personnel often encounter situations that can trigger acute stress, which may affect operational performance. Therefore, it is important to examine stress responses in controlled environments to obtain more insights in performance-influencing effects of acute stress. This study investigated the impact of passive heat exposure combined with virtual combat scenarios on cardiovascular and psychophysiological parameters in a controlled setting. Sixty-eight healthy servicemembers were randomized into a low-stress or high-stress condition. Both groups engaged in two virtual combat scenarios. The low-stress group, however, underwent testing under thermoneutral conditions (M<sub>Temp</sub> = 22.4 °C, M<sub>RelativeHumidity</sub> = 41.4 %) whereas the high-stress group was exposed to passive heat exposure (M<sub>Temp</sub> = 35.9 °C, M<sub>RelativeHumidity</sub> = 66.4 %) using a portable environmental facility. While virtual combat scenarios alone led to a decrease in heart rate variability (HRV) without affecting heart rate (HR), the addition of passive heat exposure elicited a more pronounced physiological stress response, characterized by significantly higher HR and lower HRV in the high-stress condition. However, no significant changes were observed in respiratory rate, salivary cortisol, or alpha-amylase levels across the conditions, suggesting that there was no activation of either the hypothalamic-pituitary-adrenal or the sympathetic-adrenal-medullary axis. Furthermore, subjective stress and anxiety scores did not differ between conditions, underscoring the physiological nature of the observed changes. Resultantly, the physiological response was likely a thermal reaction rather than an acute stress response. These findings highlight the importance of incorporating environmental stressors into military training protocols to enhance realism and prepare personnel for operational stressors. However, the mild response observed suggests that higher ambient temperatures and longer exposure times may be necessary to evoke a more robust stress response for effective stress inoculation training.</p>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":" ","pages":"112491"},"PeriodicalIF":2.5,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142877793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Srinidhi Jayakumar, Rachel Ferry, Thomas J Harrison, Brady D Nelson, Daniel N Klein
{"title":"Startle potentiation to unpredictable threat predicts adolescent development of generalized anxiety disorder.","authors":"Srinidhi Jayakumar, Rachel Ferry, Thomas J Harrison, Brady D Nelson, Daniel N Klein","doi":"10.1016/j.ijpsycho.2024.112490","DOIUrl":"10.1016/j.ijpsycho.2024.112490","url":null,"abstract":"<p><strong>Background: </strong>An elevated startle reflex in anticipation of unpredictable threat has been associated with concurrent anxiety disorders. However, only one study to date has examined whether startle potentiation in anticipation of unpredictable threat predicts the development of anxiety disorders.</p><p><strong>Method: </strong>In a community sample of 309 adolescents, we examined whether the startle reflex in anticipation of predictable or unpredictable threat at age 15 predicted onset of generalized anxiety disorder (GAD) and social anxiety disorder (SAD) at age 18. To evaluate the specificity of these relationships, we also examined the development of depressive disorders. Startle reflex was measured using the no, predictable, and unpredictable threat task at age 15. Semi-structured diagnostic interviews were administered at both waves to assess lifetime anxiety disorders and depression.</p><p><strong>Results: </strong>Average startle reflex and startle potentiation to unpredictable, but not predictable, threat at age 15 predicted GAD at age 18, independent of lifetime GAD through age 15 and lifetime depression through age 18. Startle responses at age 15 did not predict SAD or depression at age 18.</p><p><strong>Conclusions: </strong>The present study suggests that elevated startle potentiation in anticipation of unpredictable threat is a risk factor for the development of GAD in adolescence.</p>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":" ","pages":"112490"},"PeriodicalIF":2.5,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142878640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Utilizing movement-related potentials to monitor cognitive rehabilitation in individuals with central nervous system disorders: A review.","authors":"Giuseppe A Chiarenza, Jorge Bosch-Bayard","doi":"10.1016/j.ijpsycho.2024.112485","DOIUrl":"10.1016/j.ijpsycho.2024.112485","url":null,"abstract":"<p><p>In current neuroscience, there is a pressing need to evaluate the effectiveness of treatments for motor and cognitive disorders. In addition, there is a gap in the literature on assessing this type of rehabilitation. This review proposes using Movement-Related Potentials (MRPs) as a relevant marker for such evaluations. The method employed involves administering a psychomotor task known as the Skilled Performance Task (SPT). Originally described in 1980 by Papakostopoulos, the SPT requires specific abilities, such as bimanual coordination, adaptive programming, and precise timing. Subjects must start and stop a sweep on an oscilloscope screen with accurate timing, receiving immediate feedback that aids in performance improvement. This self-paced, goal-directed, and interactive task ensures continuous engagement and learning. Suitable for all ages, the SPT provides real-time feedback and demands constant attention and reprogramming of movements, making it an effective tool for assessing and promoting cognitive rehabilitation through neuroplasticity. The originality of this task lies in the ability to obtain, with a single motor act, a series of potentials that represent different stages of the processing of a goal-directed and self-initiated action. The MRPs associated with this task are the Bereitschaftspotential (BP), the Motor Cortex Potential (MCP), the N100, the P200, the Skilled Performance Positivity (SPP) and the Post-Action Negativity (PAN). The present study reinterprets previous research conducted on children and adults with various central nervous system pathologies, from a cognitive rehabilitation perspective, to provide new insights into neurorehabilitation techniques utilizing MRPs.</p>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":" ","pages":"112485"},"PeriodicalIF":2.5,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142824894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xukai Zhang, Jutta Peterburs, Susannah C S A Otieno, Paavo H T Leppänen, Qiang Xu, Yi Lei, Hong Li
{"title":"Are you worth the wait? Waiting time modulates the social feedback processing: Evidence from event-related potentials.","authors":"Xukai Zhang, Jutta Peterburs, Susannah C S A Otieno, Paavo H T Leppänen, Qiang Xu, Yi Lei, Hong Li","doi":"10.1016/j.ijpsycho.2024.112484","DOIUrl":"10.1016/j.ijpsycho.2024.112484","url":null,"abstract":"<p><p>Processing social feedback is essential for establishing appropriate social connections. However, social feedback is not always immediate, and the impact of waiting time on social feedback processing remains unexplored. Using electroencephalography (EEG) and event-related potentials (ERPs), the present study investigated how waiting time affects the N170, reward positivity (RewP), and P3. Participants (N = 36) completed a social evaluation task, awaiting feedback from liked and disliked peers with short (800-1200 ms) or long (5000-6000 ms) waiting times. Participants were more motivated to receive feedback from liked peers, and they rated acceptance from liked peers as more pleasant than rejection. Notably, participants found longer waits more worthwhile when receiving acceptance from liked peers, but less worthwhile when awaiting feedback from disliked peers. EEG results revealed that the RewP was increased for long waiting times for feedback from liked peers, and, conversely, reduced for long waiting times for feedback from disliked peers. Additionally, N170 and P3 were found to be sensitive to waiting time, with larger amplitudes for long compared to short waits. Overall, this study demonstrates that waiting time differentially affects social feedback processing, as reflected by changes in the N170, RewP, and P3. Our findings suggest that increased waiting time does not necessarily reduce reward value; it can enhance it depending on subjective social preferences. The increased N170 and P3 amplitudes during longer waits may indicate heightened attentional and memory demands. This study advances our understanding of the neurocognitive mechanisms underlying social decision-making.</p>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":" ","pages":"112484"},"PeriodicalIF":2.5,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142814814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jinyu Chen , Irene van de Vijver , Evan Canny , J. Leon Kenemans , Johanna M.P. Baas
{"title":"The neural correlates of emotion processing and reappraisal as reflected in EEG","authors":"Jinyu Chen , Irene van de Vijver , Evan Canny , J. Leon Kenemans , Johanna M.P. Baas","doi":"10.1016/j.ijpsycho.2024.112467","DOIUrl":"10.1016/j.ijpsycho.2024.112467","url":null,"abstract":"<div><div>Successful reappraisal modulates the impact of emotion-inducing stimuli through reinterpretation of their meaning and decreases subjective emotional experience. Here the question is addressed how the altered emotional experience is related to altered electro-cortical responses, and about the neural mechanisms underlying regulation itself. To this end, we recorded EEG during a cued emotion-regulation paradigm including negative and neutral pictures. Firstly, based on hypothesis-driven analysis of the Late Positive Potential (LPP), we found that the early fronto-centro-parietal LPP (400–1000 ms) increased when passively viewing negative versus neutral pictures. Reappraisal did not decrease this LPP. Instead, only during reappraisal, the emotion effect on the parietal LPP was sustained until the picture offset. Secondly, we applied a localizer approach to uncover reappraisal effects with other spatiotemporal characteristics than the traditional LPP but did not observe such effects. Despite indications of theta oscillations being associated with cognitive and/or affective control, no significant effects were found on theta activity for emotion processing or reappraisal. Our findings suggest that emotion regulation may affect the LPP in several ways, depending on the task design and including affective as well as more cognitive influences. A potential role for theta in emotion regulation remains to be elucidated.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"207 ","pages":"Article 112467"},"PeriodicalIF":2.5,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142755821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Quantitative EEG fingerprints: Spatiotemporal stability in interhemispheric and interannual coherence","authors":"Sultan Tarlacı , Açelya Hıdımoğlu","doi":"10.1016/j.ijpsycho.2024.112478","DOIUrl":"10.1016/j.ijpsycho.2024.112478","url":null,"abstract":"<div><div>The aim of our study is to examine the persistence of EEG coherence in the fundamental waves—delta, theta, alpha, and beta—both across spatial domains (within the brain, interhemispheric) and over extended periods (interannual). The long-term stability of a specific EEG wave coherence suggests its potential as a neural fingerprint. A total of 28 participants were included in the intrahemispheric-interannual FFT coherence analysis, comparing EEG data collected years apart. The average interannual interval between the first and second EEG recordings was 7.11 ± 4.56 years, with a range from 1.88 to 19.19 years. The combined data from the two EEG sessions shared 62.7 % of their variance, underscoring significant overlap in their information content. The interannual canonical correlation between the first and second EEGs was 0.792, indicating a strong relationship over time. Overall, alpha coherence, particularly in the frontal lobe, showed marked long-term stability, suggesting it as a strong candidate for an EEG fingerprint. Notably, when comparing fundamental wave coherences in the occipital lobe between the first and second EEGs, only the beta coherence exhibited a remarkable correlation over the years.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"207 ","pages":"Article 112478"},"PeriodicalIF":2.5,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142743791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Event-related potentials and presaccadic activity in response to affective stimuli in participants with obsessive-compulsive disorder","authors":"Krystsina Liaukovich , Elizaveta Panfilova , Guzal Khayrullina , Olga Martynova","doi":"10.1016/j.ijpsycho.2024.112475","DOIUrl":"10.1016/j.ijpsycho.2024.112475","url":null,"abstract":"<div><div>Individuals with obsessive-compulsive disorder (OCD) have difficulty with regulating their emotions and show reduced functioning of inhibitory control. It was reported previously that OCD patients had delayed antisaccade response and increased error rate only when affective pictures with negative valence served as fixation stimuli in “the antisaccade emotional fixation task”. Complementary to the previous research, eye movements and late positive potential (LPP) for fixation stimuli and the presaccadic positivity (PSP) and spike potential (SP) before saccade onset, were compared in two groups of OCD and healthy volunteers. Both groups exhibited increased fixation on emotional images, particularly on unpleasant ones, and showed heightened LPP responses without significant between-group differences. However, individuals with OCD had lower PSP and SP amplitudes for unpleasant images compared to the control group, although there were no differences within conditions for each group. These results suggest that while both groups displayed similar effects of unpleasant images on the involuntary orientation of attention, the findings on presaccadic potentials correlate with behavioral data on increased error rate in antisaccade tasks in OCD. This suggests that emotional dysregulation may contribute to impaired inhibitory control in individuals with OCD.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"207 ","pages":"Article 112475"},"PeriodicalIF":2.5,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Reduced resting and task-related alpha activity in mine workers: Implications for occupational health and neurodegenerative risk","authors":"Samet Çelik , Ebru Yıldırım , Bahar Güntekin","doi":"10.1016/j.ijpsycho.2024.112466","DOIUrl":"10.1016/j.ijpsycho.2024.112466","url":null,"abstract":"<div><div>Underground mine workers face many risk factors at work sites that are known to affect the neural system. Observational studies report that these risk factors precede neuromuscular and neurodegenerative disorders, especially in old-age miners. Neurodegenerative disorders have electrophysiological, anatomical, and functional changes long before symptoms are seen in older adults. Therefore, this study investigated whether risks faced by miners at young ages were reflected in electrophysiological signals. Twenty-one underground miners and twenty-two above-ground workers matched with them in terms of age, education, and working duration were included in this study. Participants were recorded with a 20-channel EEG during the resting-state (eyes open and closed; EO-EC) and the perception of the International Affective Picture System Paradigm (IAPS). Time-frequency analyses were performed for alpha frequency. Rs-EEG results showed a statistically significant difference in alpha power between the EO and EC states in the control group. However, there was no statistical difference in alpha power between these two conditions in the miners. Additionally, we noted a more pronounced decrease in alpha responses in the posterior region during EC in the miners. The group's main effects were statistically significant in event-related alpha responses during emotional responses. Accordingly, event-related alpha responses of the miner group were lower than the control group in terms of both power spectrum and phase-locking. Underground mine workers are cognitively and emotionally affected by risks in the work environment. Electrophysiological changes seen in young underground workers may be a harbinger of neurodegenerative disorders in miners' old age. Our research findings may lead to the development of occupational neuroscience, social policies, and worker health, which are necessary to improve working conditions for mineworkers.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"207 ","pages":"Article 112466"},"PeriodicalIF":2.5,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142693818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Allie R. Geiger , Matthew J. Euler , Jasmin E. Guevara , Julia Vehar , Jace B. King , Kevin Duff , John M. Hoffman
{"title":"Biomarker and neuropsychological correlates of the N400 event-related potential in Alzheimer's disease","authors":"Allie R. Geiger , Matthew J. Euler , Jasmin E. Guevara , Julia Vehar , Jace B. King , Kevin Duff , John M. Hoffman","doi":"10.1016/j.ijpsycho.2024.112464","DOIUrl":"10.1016/j.ijpsycho.2024.112464","url":null,"abstract":"<div><h3>Objective</h3><div>The current study sought to characterize the relationship of the N400 (N4) effect event-related potential to Alzheimer's disease (AD) biomarkers and broader cognition in older adults on the late-life cognitive continuum.</div></div><div><h3>Method</h3><div>Participants who were cognitively intact (<em>n</em> = 43), or had amnestic mild cognitive impairment (MCI; <em>n</em> = 19), or mild AD (<em>n</em> = 12), completed a word-pair judgement task during concurrent EEG recording to elicit the N400. The Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) and biomarker data (PET-imaged beta-amyloid (aβ) deposition, apolipoprotein-E ε4 (APOE4) allele status, hippocampal volumes) were collected as part of a larger study.</div></div><div><h3>Results</h3><div>The AD group had slower response times and poorer accuracy on the word-pair judgement task than the intact group. The N4 effect was smaller and occurred later in AD relative to intact participants. MCI participants' values were intermediate. N4 effect amplitudes were not associated with RBANS scores but were positively associated with aβ deposition. Conversely, poorer performance across most RBANS Indexes and the Total score was associated with longer N4 latencies. There was also a negative association between hippocampal volumes and the N4 latency and a positive association between aβ deposition and latency. Finally, the latency of the N4 independently predicted variance in RBANS Total scores, above and beyond aβ deposition, hippocampal volumes, and APOE4 allele status.</div></div><div><h3>Conclusions</h3><div>These findings support the relevance of the N4 effect in individuals along the late-life cognitive continuum, and motivate future studies into its potential as a longitudinal predictor in AD.</div></div>","PeriodicalId":54945,"journal":{"name":"International Journal of Psychophysiology","volume":"207 ","pages":"Article 112464"},"PeriodicalIF":2.5,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142689804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}