Psychophysiology最新文献

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Increased visual alpha-band activity during self-paced finger tapping does not affect early visual stimulus processing. 自节奏手指敲击过程中视觉α波段活动的增加不会影响早期视觉刺激的处理。
IF 2.9 2区 心理学
Psychophysiology Pub Date : 2024-12-01 Epub Date: 2024-10-08 DOI: 10.1111/psyp.14707
C Gundlach, M M Müller
{"title":"Increased visual alpha-band activity during self-paced finger tapping does not affect early visual stimulus processing.","authors":"C Gundlach, M M Müller","doi":"10.1111/psyp.14707","DOIUrl":"10.1111/psyp.14707","url":null,"abstract":"<p><p>Alpha-band activity is thought to be involved in orchestrating neural processing within and across brain regions relevant to various functions such as perception, cognition, and motor activity. Across different studies, attenuated alpha-band activity has been linked to increased neural excitability. Yet, there have been conflicting results concerning the consequences of alpha-band modulations for early sensory processing. We here examined whether movement-related alterations in visual alpha-band activity affected the early sensory processing of visual stimuli. For this purpose, in an EEG experiment, participants were engaged in a voluntary finger-tapping task while passively viewing flickering dots. We found extensive and expected movement-related amplitude modulations of motor alpha- and beta-band activity with event-related-desynchronization (ERD) before and during, and event-related-synchronization (ERS) after single voluntary finger taps. Crucially, while a visual alpha-band ERS accompanied the motor alpha-ERD before and during each finger tap, flicker-evoked Steady-State-Visually-Evoked-Potentials (SSVEPs), as a marker of early visual sensory gain, were not modulated in amplitude. As early sensory stimulus processing was unaffected by amplitude-modulated visual alpha-band activity, this argues against the idea that alpha-band activity represents a mechanism by which early sensory gain modulation is implemented. The distinct neural dynamics of visual alpha-band activity and early sensory processing may point to distinct and multiplexed neural selection processes in visual processing.</p>","PeriodicalId":20913,"journal":{"name":"Psychophysiology","volume":" ","pages":"e14707"},"PeriodicalIF":2.9,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11579237/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142392815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The effect of gradual extinction training on the renewal of electrodermal conditional responses. 渐进消退训练对电皮条件反应更新的影响
IF 2.9 2区 心理学
Psychophysiology Pub Date : 2024-12-01 Epub Date: 2024-09-16 DOI: 10.1111/psyp.14681
Yi Wang, Camilla C Luck, Allison M Waters, Luke J Ney, Ottmar V Lipp
{"title":"The effect of gradual extinction training on the renewal of electrodermal conditional responses.","authors":"Yi Wang, Camilla C Luck, Allison M Waters, Luke J Ney, Ottmar V Lipp","doi":"10.1111/psyp.14681","DOIUrl":"10.1111/psyp.14681","url":null,"abstract":"<p><p>Extinction, the repeated presentation of a conditional stimulus (CS) without the unconditional stimulus (US), is the standard paradigm to reduce conditional responding acquired by the repeated pairing of CS and US in acquisition. However, this reduction of conditional responding is prone to relapse. In rodent fear-conditioning, gradual extinction, the fading out of CS-US pairings during extinction, has been shown to reduce the return of fear. The current study replicated the gradual extinction procedure in human fear conditioning and assessed whether it reduced the return of fear due to ABA renewal and reacquisition. During extinction, one group received standard extinction, a second received gradual extinction (increasing the spacing of USs presented after the 1st, 3rd, 6th, 10th, and 15th CS+ trials), and a third received reversed extinction training (decreasing the spacing of USs presented after the 1st, 6th, 10th, 13th, and 15th CS+ trials). Larger renewal and faster reacquisition of differential electrodermal responses to CS+ and CS- were expected after standard and reversed extinction than after gradual extinction training. The results were inconclusive due to the failure to find extinction of differential electrodermal responses and US expectancy ratings in both gradual and reversed extinction groups. Despite successful extinction in group standard, renewal was only observed in US expectancy. Visualization of US expectancy ratings during extinction suggested that potential identification of the US presentation patterns during extinction in the gradual and reversed groups delayed extinction learning.</p>","PeriodicalId":20913,"journal":{"name":"Psychophysiology","volume":" ","pages":"e14681"},"PeriodicalIF":2.9,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11579229/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142294085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Heartfelt choices: The influence of cardiac phase on free-choice actions. 发自内心的选择:心脏期对自由选择行动的影响。
IF 2.9 2区 心理学
Psychophysiology Pub Date : 2024-12-01 Epub Date: 2024-10-11 DOI: 10.1111/psyp.14682
Elena Mussini, Mauro Gianni Perrucci, Marcello Costantini, Francesca Ferri
{"title":"Heartfelt choices: The influence of cardiac phase on free-choice actions.","authors":"Elena Mussini, Mauro Gianni Perrucci, Marcello Costantini, Francesca Ferri","doi":"10.1111/psyp.14682","DOIUrl":"10.1111/psyp.14682","url":null,"abstract":"<p><p>The influence of cardiac phases on cognitive and sensorimotor functions is noteworthy. Specifically, during systole, as opposed to diastole, there is an observed enhancement in tasks demanding the suppression of instructed responses. This suggests that systole contributes to inhibitory control in motor functions. However, the extent to which systolic inhibition is significant in volitional free-choice actions, such as choosing to execute or refrain from a cue-initiated response, remains to be clarified. To fill this gap in the current literature, the purpose of this study was to test whether during the systole phase, compared with the diastole phase, the tendency to enact volitional actions decreased due to the systolic inhibitory effect. We used a modified version of the Go/No-Go task with an added condition for volitional free-choice actions, where participants could decide whether to respond or not, to test whether systolic inhibition could affect the volitional decision to act. The results showed that participants' responses were less frequent in systole than in diastole in the volitional action condition. Then, to test the robustness of the cardiac effect on volitional actions, we used two established manipulations: the Straw Breathing Manipulation and the Cold Pressor Test, which were able to induce anxiety and increase the heart rate, respectively. Results showed that the systole/diastole difference in the number of volitional action trials in which participants decided to respond tended to remain the same despite all manipulations. Overall, our results provide convergent evidence for the effect of the heart on the decision to act, an effect that appears independent of manipulations of both the physiological and psychological state of the individual.</p>","PeriodicalId":20913,"journal":{"name":"Psychophysiology","volume":" ","pages":"e14682"},"PeriodicalIF":2.9,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11579240/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142401111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Linking brain-heart interactions to emotional arousal in immersive virtual reality. 将沉浸式虚拟现实中的脑心互动与情绪唤醒联系起来。
IF 2.9 2区 心理学
Psychophysiology Pub Date : 2024-12-01 Epub Date: 2024-10-14 DOI: 10.1111/psyp.14696
A Fourcade, F Klotzsche, S M Hofmann, A Mariola, V V Nikulin, A Villringer, M Gaebler
{"title":"Linking brain-heart interactions to emotional arousal in immersive virtual reality.","authors":"A Fourcade, F Klotzsche, S M Hofmann, A Mariola, V V Nikulin, A Villringer, M Gaebler","doi":"10.1111/psyp.14696","DOIUrl":"10.1111/psyp.14696","url":null,"abstract":"<p><p>The subjective experience of emotions is linked to the contextualized perception and appraisal of changes in bodily (e.g., heart) activity. Increased emotional arousal has been related to attenuated high-frequency heart rate variability (HF-HRV), lower EEG parieto-occipital alpha power, and higher heartbeat-evoked potential (HEP) amplitudes. We studied emotional arousal-related brain-heart interactions using immersive virtual reality (VR) for naturalistic yet controlled emotion induction. Twenty-nine healthy adults (13 women, age: 26 ± 3) completed a VR experience that included rollercoasters while EEG and ECG were recorded. Continuous emotional arousal ratings were collected during a video replay immediately after. We analyzed emotional arousal-related changes in HF-HRV as well as in BHIs using HEPs. Additionally, we used the oscillatory information in the ECG and the EEG to model the directional information flows between the brain and heart activity. We found that higher emotional arousal was associated with lower HEP amplitudes in a left fronto-central electrode cluster. While parasympathetic modulation of the heart (HF-HRV) and parieto-occipital EEG alpha power were reduced during higher emotional arousal, there was no evidence for the hypothesized emotional arousal-related changes in bidirectional information flow between them. Whole-brain exploratory analyses in additional EEG (delta, theta, alpha, beta and gamma) and HRV (low-frequency, LF, and HF) frequency bands revealed a temporo-occipital cluster, in which higher emotional arousal was linked to decreased brain-to-heart (i.e., gamma→HF-HRV) and increased heart-to-brain (i.e., LF-HRV → gamma) information flow. Our results confirm previous findings from less naturalistic experiments and suggest a link between emotional arousal and brain-heart interactions in temporo-occipital gamma power.</p>","PeriodicalId":20913,"journal":{"name":"Psychophysiology","volume":" ","pages":"e14696"},"PeriodicalIF":2.9,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11579222/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142473394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Error monitoring under working memory load: An electrocortical investigation. 工作记忆负荷下的错误监测:皮层电学调查
IF 2.9 2区 心理学
Psychophysiology Pub Date : 2024-12-01 Epub Date: 2024-09-28 DOI: 10.1111/psyp.14694
Brandon K Watanabe, Elizabeth A Bauer, Annmarie MacNamara
{"title":"Error monitoring under working memory load: An electrocortical investigation.","authors":"Brandon K Watanabe, Elizabeth A Bauer, Annmarie MacNamara","doi":"10.1111/psyp.14694","DOIUrl":"10.1111/psyp.14694","url":null,"abstract":"<p><p>Error monitoring is essential for detecting errors and may facilitate behavioral adjustments that can reduce or prevent future errors. At times, error monitoring must occur while individuals are engaged in other, cognitively demanding tasks that might consume processing resources necessary for error monitoring. Here, we set out to determine whether concurrent working memory (WM) load interferes with error monitoring, as measured using event-related potentials, the error-related negativity (Ne/ERN), and error positivity (Pe). Fifty-four participants (n = 33 female) completed an arrowhead flanker task, with trials presented under low (2 letter) or high (6 letter) WM load. Participants were required to hold letter strings in memory and to recall these letters at the end of a set of flanker trials. Results showed that WM load reduced the Pe but did not affect the Ne/ERN. Therefore, WM load appeared to attenuate later, more elaborated stages of error processing, though initial error detection was unaffected. Additionally, high WM load slowed reaction times overall, but did not lead to a significant increase in errors. As such, slower responses may have helped participants maintain comparable accuracy for low-load versus high-load trials. Overall, results indicate that WM load interferes with the evaluation of error significance, which could interfere with behavioral adaptations over time.</p>","PeriodicalId":20913,"journal":{"name":"Psychophysiology","volume":" ","pages":"e14694"},"PeriodicalIF":2.9,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11698382/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142352752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction to "Improving memory through choice and deliberation in decision-making: Evidence from ERPs". 更正 "在决策中通过选择和深思熟虑改善记忆:来自 ERPs 的证据"。
IF 2.9 2区 心理学
Psychophysiology Pub Date : 2024-12-01 Epub Date: 2024-09-24 DOI: 10.1111/psyp.14685
{"title":"Correction to \"Improving memory through choice and deliberation in decision-making: Evidence from ERPs\".","authors":"","doi":"10.1111/psyp.14685","DOIUrl":"10.1111/psyp.14685","url":null,"abstract":"","PeriodicalId":20913,"journal":{"name":"Psychophysiology","volume":" ","pages":"e14685"},"PeriodicalIF":2.9,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142352750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring emotions beyond the laboratory: A review of emotional and physiological ecological momentary assessment methods in children and youth. 探索实验室之外的情绪:儿童和青少年情绪和生理生态瞬间评估方法综述。
IF 2.9 2区 心理学
Psychophysiology Pub Date : 2024-12-01 Epub Date: 2024-10-04 DOI: 10.1111/psyp.14699
Linda Sosa-Hernandez, Natasha Vogel, Katelyn Frankiewicz, Chelsea Reaume, Abbey Drew, Sadie McVey Neufeld, Kristel Thomassin
{"title":"Exploring emotions beyond the laboratory: A review of emotional and physiological ecological momentary assessment methods in children and youth.","authors":"Linda Sosa-Hernandez, Natasha Vogel, Katelyn Frankiewicz, Chelsea Reaume, Abbey Drew, Sadie McVey Neufeld, Kristel Thomassin","doi":"10.1111/psyp.14699","DOIUrl":"10.1111/psyp.14699","url":null,"abstract":"<p><p>Recent advancements in methodologies such as ecological momentary assessment (EMA) and ambulatory physiology devices have enhanced our ability to measure emotions experienced in daily life. Despite the feasibility of EMA for assessing children's and youth's emotional self-reports, the feasibility of combining it with physiological measurements in a real-life context has yet to be established. Our scoping review evaluates the feasibility and usability of implementing emotional and physiological EMA in children and youth. Due to the complexities of physiological EMA data, this review also synthesized existing methodological and statistical practices of existing studies. Following the PRISMA-ScR guidelines, we searched and screened PsycINFO, PubMed, and Web of Science electronic databases for studies that assessed children's and youth's subjective emotions and cardiac or electrodermal physiological responses outside the laboratory. Our initial search resulted in 4174 studies, 13 of which were included in our review. Findings showed significant variability in the feasibility of physiological EMA, with physiology device wear-time averaging 58.77% of study periods and data loss due to quality issues ranging from 0.2% to 77% across signals. Compliance for emotional EMA was approximately 60% of study periods when combined with physiological EMA. The review points to a lack of standardized procedures in physiological EMA and suggests a need for guidelines in designing, processing, and analyzing such data collected in real-life contexts. We offer recommendations to enhance participant engagement and develop standard practices for employing physiological EMA with children and youth for emotion, developmental, and psychophysiology researchers.</p>","PeriodicalId":20913,"journal":{"name":"Psychophysiology","volume":" ","pages":"e14699"},"PeriodicalIF":2.9,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11579238/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142375879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Adiposity influences intraindividual variability in behavioral and neuroelectric indices of attentional inhibition. 肥胖会影响注意力抑制的行为和神经电指数的个体内变异性。
IF 2.9 2区 心理学
Psychophysiology Pub Date : 2024-12-01 Epub Date: 2024-08-30 DOI: 10.1111/psyp.14677
Jeongwoon Kim, Anne M Walk, Shelby A Keye, Christopher J Kinder, Corinne N Cannavale, Nicholas A Burd, Naiman A Khan
{"title":"Adiposity influences intraindividual variability in behavioral and neuroelectric indices of attentional inhibition.","authors":"Jeongwoon Kim, Anne M Walk, Shelby A Keye, Christopher J Kinder, Corinne N Cannavale, Nicholas A Burd, Naiman A Khan","doi":"10.1111/psyp.14677","DOIUrl":"10.1111/psyp.14677","url":null,"abstract":"<p><p>While overweight or obesity are thought to affect over 70% of the US population, the effects of adiposity on neurocognitive efficiency and stability remain unclear. Intra-individual variability or trial-to-trial variability (IIV) could provide insights into the influence of adiposity on neurophysiological stability. However, previous work examining the association between adiposity and IIV of cognitive outcomes is limited. Thus, this study examined the association between whole-body fat (%BF) and central tendency and IIV metrics of behavioral performance and event-related potentials. Adults (n = 320; 19-64 yrs) completed the Flanker task to assess attentional inhibition with concurrent electroencephalogram recordings to examine the N2 and P3b components. In addition to central tendency outcomes typically reported (i.e., mean accuracy and reaction time [RT]), dispersion outcomes (e.g., standard deviation [SD] of RT, P3b latency, N2 latency, etc.) were also extracted. Upon controlling for age and sex, %BF was inversely associated with (congruent: β = -.18, p = .016; incongruent: β = -.23, p < .001) accuracy. Increasing %BF was related to greater RT SD (congruent: β = .13, p = .032; incongruent: β = .23, p < .001). Furthermore, increased %BF was associated with slower P3b latencies (congruent: β = .21, p = .003; incongruent: β = .18, p = .010), and greater incongruent N2 (β = .16, p = .017) and P3b (β = .16, p = .025) latency SD. These findings suggest adiposity exerts a generalized negative influence on attentional inhibition for both measures of central tendency and dispersion across behavioral and neuroelectric indices.</p>","PeriodicalId":20913,"journal":{"name":"Psychophysiology","volume":" ","pages":"e14677"},"PeriodicalIF":2.9,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11579232/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142111409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
How is emotional evidence from multiple sources used in perceptual decision making? 来自多个来源的情感证据如何用于感性决策?
IF 2.9 2区 心理学
Psychophysiology Pub Date : 2024-11-30 DOI: 10.1111/psyp.14727
Hilary H T Ngai, Janet H Hsiao, Christian C Luhmann, Aprajita Mohanty, Jingwen Jin
{"title":"How is emotional evidence from multiple sources used in perceptual decision making?","authors":"Hilary H T Ngai, Janet H Hsiao, Christian C Luhmann, Aprajita Mohanty, Jingwen Jin","doi":"10.1111/psyp.14727","DOIUrl":"https://doi.org/10.1111/psyp.14727","url":null,"abstract":"<p><p>Judging the emotional nature of a scene requires us to deliberately integrate pieces of evidence with varying intensities of emotion. Our existing knowledge about emotion-related perceptual decision-making is largely based on paradigms using single stimulus and, when involving multiple stimuli, rapid decisions. Consequently, it remains unclear how we sample and integrate multiple pieces of emotional evidence deliberately to form an overall judgment. Findings from non-emotion rapid decision-making studies show humans down-sample and downweight extreme evidence. However, deliberate decision-making may rely on a different attention mode than in rapid decision-making; and extreme emotional stimuli are inherently salient. Given these critical differences, it is imperative to directly examine the deliberate decision-making process about multiple emotional stimuli. In the current study, human participants (N = 33) viewed arrays of faces with expressions ranging from extremely fearful to extremely happy freely with their eye movement tracked. They then decided whether the faces were more fearful or happier on average. In contrast to conclusions drawn from non-emotion and rapid decision-making studies, eye movement measures revealed that participants attentionally sampled extreme emotional evidence more than less extreme evidence. Computational modeling results indicated that even though participants exhibited biased attention distribution, they weighted various emotional evidence equally. These findings provide novel insights into how people sample and integrate multiple pieces of emotional evidence, contribute to a more comprehensive understanding of emotion-related decision-making, and shed light on the mechanisms of pathological affective decisions.</p>","PeriodicalId":20913,"journal":{"name":"Psychophysiology","volume":" ","pages":"e14727"},"PeriodicalIF":2.9,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142755195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigating the modulation of gastric sensations and disposition toward food with taVNS. 用taVNS研究胃感觉和食物倾向的调节。
IF 2.9 2区 心理学
Psychophysiology Pub Date : 2024-11-30 DOI: 10.1111/psyp.14735
Andrea Salaris, Ruben T Azevedo
{"title":"Investigating the modulation of gastric sensations and disposition toward food with taVNS.","authors":"Andrea Salaris, Ruben T Azevedo","doi":"10.1111/psyp.14735","DOIUrl":"https://doi.org/10.1111/psyp.14735","url":null,"abstract":"<p><p>Interoception, the perception of visceral sensations, is key for several survival functions, including those related to feeding behavior. Sensations of hunger and satiety are mediated by gastric signals transmitted via the vagus nerve to the Nucleus of Solitary Tract. Transcutaneous auricular vagus nerve stimulation (taVNS) has been shown to modulate brain-viscera communication and to impact interoceptive processing in the cardiac domain. Yet, its effect on gastric interoception remains unclear. The aim of this study was to investigate taVNS' modulatory effects on gastric interoception using the Water Load Test-II (WLT-II) and its impact on food-related dispositions through a disposition and willingness to eat task (DWET). Participants underwent active or sham taVNS while performing the WLT-II and DWET. Results showed no significant difference in gastric interoceptive accuracy and amount of water ingested between taVNS groups. However, we found a significant reduction in food liking after the fullness phase of the WLT-II in the active (vs sham) taVNS group, suggesting an influence of vagal activation in the inhibition of food enjoyment when satiated. These findings suggest that, while taVNS may not directly enhance gastric interoceptive accuracy at a conscious level, it influences food-related dispositions, likely by modulating the processing of gastric signals. Further research exploring the intricate relationship between vagal modulation, interoceptive abilities and eating behaviors is warranted to elucidate the underlying mechanisms and, possibly, develop targeted interventions for eating disorders.</p>","PeriodicalId":20913,"journal":{"name":"Psychophysiology","volume":" ","pages":"e14735"},"PeriodicalIF":2.9,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142755198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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