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International Journal of Psychophysiology

Marie-Pierre Tessier, Marie-Hélène Pennestri, Roger Godbout
INTRODUCTION: Studies suggest a sympathetic-parasympathetic disequilibrium in children with autism spectrum disorder (ASD), compared to typically developing (TD) children. The autonomic nervous system (ANS) shows profound modification with age but studies in ASD adults are lacking. The ANS is also influenced by vigilance states such as wakefulness and sleep. The aim of this study is to explore differences in ANS activity in typically developing (TD) and ASD individuals during sleep and wakefulness, as a function of age...
October 9, 2018: International Journal of Psychophysiology
Joseph Olson, J Peter Rosenfeld, Taewoo Kim, Ella Perrault
Behavioral reaction time (RT) to key (probe) stimuli in a concealed information test (CIT) is usually greater than RT to irrelevant stimuli, and this difference has been utilized as a sign of recognition of concealed information. The ability to voluntarily increase irrelevant RT would appear to be an obvious countermeasure to the RT-based CIT. This study examined the effect of such countermeasure use on the simultaneously recorded P300 event related potentials. There were two blocks of trials in the present study, based on the 3-stimulus protocol...
October 7, 2018: International Journal of Psychophysiology
Wiebke Käckenmester, Lara Kroencke, Jan Wacker
Information has been suggested to convey incentive value mediated by dopaminergic systems similar to those implicated in extrinsic reward. Although the reward characteristics of information have received preliminary support by behavioral and fMRI findings, EEG correlates and individual differences have not yet been examined. In the current study, a novel perceptual paradigm was developed to probe the associations between anticipation of perceptual information and frontal electroencephalographic alpha asymmetry, i...
October 6, 2018: International Journal of Psychophysiology
Dhrasti Shah, Verner Knott, Ashley Baddeley, Hayley Bowers, Nicola Wright, Allen Labelle, Charles Collin
Patients with schizophrenia show impaired face and emotional expression processing that may be due to early perceptual deficits or late impairments in higher-order emotional facial recognition. This study examined event-related potentials (ERPs) in 23 patients with schizophrenia who experience auditory hallucinations and 19 healthy controls. EEG activity was recorded from 32 scalp sites positioned according to the 10-10 placement system. Linked left and right electrodes at the mastoids served as the reference...
October 3, 2018: International Journal of Psychophysiology
Simone N Fueggle, Romola S Bucks, Allison M Fox
Sleep deprivation studies have highlighted the importance of adequate sleep for optimal daytime functioning. However, there is limited research exploring whether variations in natural sleep patterns produce similar difficulties to those seen in sleep deprivation studies. The aim of the current study was to explore whether naturalistic reductions in sleep duration and/or sleep quality were associated with behavioural and electrophysiological measures of cognitive control. Sixty undergraduate students were asked to wear an actigraph for 7 consecutive nights before completing a hybrid Flanker-Go/NoGo task whilst continuous EEG data were recorded...
October 2, 2018: International Journal of Psychophysiology
Anthony J Ries, David Slayback, Jon Touryan
Fixation-related potentials (FRPs) enable examination of electrophysiological signatures of visual perception under naturalistic conditions, providing a neural snapshot of the fixated scene. The most prominent FRP component, commonly referred to as the lambda response, is a large deflection over occipital electrodes (O1, Oz, O2) peaking 80-100 ms post fixation, reflecting afferent input to visual cortex. The lambda response is affected by bottom-up stimulus features and the size of the preceding saccade; however, prior research has not adequately controlled for these influences in free viewing paradigms...
September 26, 2018: International Journal of Psychophysiology
Diana Karamacoska, Robert J Barry, Genevieve Z Steiner
Response variability has been identified as a useful predictor of executive function and performance in non-clinical samples in the Go/NoGo task. The present study explores the utility of reaction time variability (RTV) and EEG measures as predictors of Go/NoGo performance outcomes and ERP component amplitudes. Forty-four young adults had EEG recorded across eyes-closed (EC) and eyes-open (EO) resting states, and during an auditory Go/NoGo task. The 18 individuals with the lowest/highest RTV were assessed for differences in behavioural outcomes...
September 25, 2018: International Journal of Psychophysiology
Cheng-Teng Ip, Melanie Ganz, Brice Ozenne, Lasse B Sluth, Mikkel Gram, Geoffrey Viardot, Philippe l'Hostis, Philippe Danjou, Gitte M Knudsen, Søren R Christensen
In this study we present the test-retest reliability of pre-intervention EEG/ERP (electroencephalogram/event-related potentials) data across four recording intervals separated by a washout period (18-22 days). POz-recording-reference EEG/ERP (28 sites, average reference) were recorded from thirty-two healthy male participants. Participants were randomly allocated into different intervention sequences, each with four intervention regimens: 10 mg vortioxetine, 20 mg vortioxetine, 15 mg escitalopram and Placebo...
September 22, 2018: International Journal of Psychophysiology
Andrew R Fox, Lauren E Hammond, Amy H Mezulis
Research suggests that both respiratory sinus arrhythmia (RSA) and emotion regulation are related to maladaptive outcomes. However, little is known about how these factors jointly contribute to nonsuicidal self-injury (NSSI). We examined how resting RSA and RSA withdrawal to stress predicted NSSI among young adults, and whether adaptive emotion regulation strategies moderated this effect. We examined this relation in a sample of 70 young adults (Mage  = 19.25, SDage  = 0.92, 94% female), 35 with a recent history of NSSI and 35 who had never engaged in NSSI...
September 21, 2018: International Journal of Psychophysiology
I-Mei Lin
Cardiorespiratory synchronization training (CRST) uses diaphragmatic breathing to increase balance in the autonomic nervous system and reduce negative emotions. CRST integrated with high-technology mobile applications affords innovative and convenient home-based training. This study examined the effects of a CRST mobile application on heart rate variability (HRV) and electroencephalography (EEG) parameters in healthy adults. Ninety-six participants were randomly assigned to the CRST, relaxation training (RT; active control group), and control (C) groups...
September 20, 2018: International Journal of Psychophysiology
Jin Zhao, Qinji Su, Feng Liu, Zhikun Zhang, Ranran Li, Furong Zhu, Renrong Wu, Jingping Zhao, Wenbin Guo
BACKGROUND: Alterations of white matter integrity have been implicated in patients with somatization disorder (SD). However, changes of white matter volume (WMV) remain unclear. This study is designed to examine regional WMV in patients with SD and to investigate the potential relationships between WMV abnormalities and personality traits, cognitive function, and symptom severity. METHODS: We recruited 25 first-episode, drug-naive patients with SD and 28 sex-, age-, and education-matched healthy controls for the study...
September 15, 2018: International Journal of Psychophysiology
Inês M Tavares, Ricardo Vardasca, Nicoletta Cera, Raquel Pereira, Filippo M Nimbi, Dominika Lisy, Erick Janssen, Pedro J Nobre
Infrared thermography (IRT) is a non-contact technique that permits mapping and analysis of the temperature of the body's skin surface. This method has been applied to sexual psychophysiology since the 1980s and its use has been expanding ever since, mainly because it provides several advantages over existing genital response measures. This article presents a review of experimental studies employing IRT to investigate human sexual arousal, with the aim of summarizing the available procedures and evidence so far and to identify important caveats in the literature...
September 9, 2018: International Journal of Psychophysiology
Peng Li, Hang Yin, Huyan Xu, Yi Lei, Hong Li
Performance monitoring plays a virtual role in individual reinforcement learning. However, it remains unclear how responsibility attribution modulates the individual monitoring process in a social cooperative context. In the present study, 46 participants received feedback on the team's monetary outcome, teammate performance, and their own performance sequentially for a two-person task. Using event-related potential (ERP), we analyze brain activity in response to performance monitoring during team and self feedback, indexed according to reward positivity (RewP)...
September 8, 2018: International Journal of Psychophysiology
Xi-Jing Chen, Chun-Guang Wang, Yong-Hui Li, Nan Sui
Individuals with methamphetamine use disorder (MUD) exhibit irritability and compulsive emotional responses, yet the relevant study is scarce. The characteristic of their positive and negative emotional responses can provide effective targets for the clinical intervention. In this study, we compared the emotional responses of 60 participants with MUD and 30 healthy participants to visual stimuli. They watched four types of video to elicit anger, fear, amusement, and joy emotional responses. The self-report of emotional responses (i...
September 6, 2018: International Journal of Psychophysiology
Josef Sucec, Michaela Herzog, Ilse Van Diest, Omer Van den Bergh, Andreas von Leupoldt
Dyspnea (=breathlessness) is an aversive and threatening symptom in various prevalent diseases. Established treatment procedures aim for behavioral changes in dyspneic patients in order to treat dyspnea successfully. To achieve these behavioral changes, response inhibition as one key executive function for goal-directed behavior is an important prerequisite. However, the impact of dyspnea on response inhibition is widely unknown. Therefore, the present study aimed at testing whether experimentally induced dyspnea would impair response inhibition...
August 31, 2018: International Journal of Psychophysiology
Chelsea Romney, Jennifer Hahn-Holbrook, Greg J Norman, Andrew Moore, Julianne Holt-Lunstad
Previous studies reveal that oxytocin (OT) encourages prosocial behavior in humans; however, animal studies and recent work in humans suggest that OT may also play a role in aggressive behavior and feelings. The present study investigated these competing predictions in the context of a competitive task among 85 healthy human participants (males and females). Using a randomized double-blind design, participants were assigned to an experimental (intranasal OT) or control (intranasal placebo) group. Hostility (Aggression Questionnaire) was measured at home (T1) and in the lab after intranasal administration (T2)...
August 23, 2018: International Journal of Psychophysiology
Dan Foti, Anna Weinberg
No abstract text is available yet for this article.
August 22, 2018: International Journal of Psychophysiology
Sigita Melynyte, Grace Y Wang, Inga Griskova-Bulanova
The evidence suggests that gender-related effects could influence the electrophysiological P300 parameters and stand as an additional source of variation for both clinical and non-clinical subjects. The aim of this paper is to characterize gender-related differences in P300 potential as elicited with simple auditory paradigms. This knowledge (1) is important for the practical assessment of P300 potential in normal and clinical populations, and (2) can provide an insight into the understanding of gender differences in pathophysiology, particularly those with differential risk or prevalence in males and females...
August 18, 2018: International Journal of Psychophysiology
Tatiana Conde, Óscar F Gonçalves, Ana P Pinheiro
The ability to discriminate self- and non-self voice cues is a fundamental aspect of self-awareness and subserves self-monitoring during verbal communication. Nonetheless, the neurofunctional underpinnings of self-voice perception and recognition are still poorly understood. Moreover, how attention and stimulus complexity influence the processing and recognition of one's own voice remains to be clarified. Using an oddball task, the current study investigated how self-relevance and stimulus type interact during selective attention to voices, and how they affect the representation of regularity during voice perception...
August 13, 2018: International Journal of Psychophysiology
Saif Rahman, Matthew Habel, Richard J Contrada
The Poincaré plot is a visual representation of the R-R time series within a Cartesian plane constructed by plotting each R-R interval as a function of the previous one. The plot can be characterized by parameters that quantify the standard deviation (SD) of short- and long-term R-R interval variability (SD1 and SD2, respectively). Claims regarding the use of Poincaré plot analysis as an alternative to conventional time-domain and spectral analytic measures of parasympathetic contributions to heart rate variability (HRV) have been evaluated somewhat extensively...
August 11, 2018: International Journal of Psychophysiology
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