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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, Mathew 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
Elizabeth A Martin, Amanda McCleery, Melody M Moore, Jonathan K Wynn, Michael F Green, William P Horan
BACKGROUND: Although individuals with, or at risk for, psychotic disorders often show difficulties with performance monitoring and feedback processing, findings from studies using event-related potentials (ERPs) to index these processes are not consistent. This meta-analytic review focused on studies of two different indexes of performance monitoring, the early error-related negativity (ERN; n = 25) and the later error positivity (Pe; n = 17), and one index of feedback processing, the feedback negativity (FN; n = 6)...
August 10, 2018: International Journal of Psychophysiology
Philippa Howsley, Liat Levita
This study investigated age-, gender-, and puberty-related changes in two cortical sources of spontaneous alpha during eyes-open and eyes-closed conditions in a cohort of adolescents aged 9-23 years. In total, 29 preadolescents (9-12 years, 14 females), 29 mid-adolescents (13-17 years, 14 females), and 33 late adolescents (18-23 years, 17 females) had their resting brain activity measured using electroencephalography (EEG) during eyes-open and eyes-closed conditions. Standardised Low Resolution Brain Electromagnetic Tomography (sLORETA) was used to estimate the cortical sources of spontaneous alpha...
August 8, 2018: International Journal of Psychophysiology
Maxime Curzietti, Anne-Clémence Chaillou, Anne Bonnefond, Pierre Vidailhet, Nadège Doignon-Camus
Reading deficits have been reported for patients suffering from schizophrenia namely, specific phonological processing deficits. Phonological processing skills are crucial in the learning-to-read process as they are necessary to develop visual expertise for print, which reflects the neural specialization for print. The present study is the first to test visual expertise for print in patients suffering from schizophrenia by measuring the N170 component. Patients and pair-matched healthy control participants performed a lexical decision task, in which words and symbols were presented...
August 6, 2018: International Journal of Psychophysiology
Ping Song, Zhuo Zhang, Bo Wang, David Nussbaum, Hui Zhao, Qianglong Wang, Yuqing Xiao, Bo Yang
This study mainly investigated the electrophysiological mechanism underlying the effect of trait empathy on reactive aggression using event-related potentials (ERPs). Firstly, we computed the correlation between trait empathy and trait aggression in 413 male undergraduates. The trait empathy was positively correlated with trait aggression, whereas the perspective taking (cognitive empathy) and the empathic concern (affective empathy) dimensions of trait empathy were negatively correlated with physical aggression...
August 6, 2018: International Journal of Psychophysiology
Jichi Chen, Hong Wang, Chengcheng Hua
This paper proposes a comprehensive approach to explore whether functional brain network (FBN) changes from the alert state to the drowsy state and to find out ideal neurophysiology indicators able to detect driver drowsiness in terms of FBN. A driving simulation experiment consisting of two driving tasks is designed and conducted using fifteen participant drivers. Collected EEG signals are then decomposed into multiple frequency bands by wavelet packet transform (WPT). Based on this, two novel FBN approaches, synchronization likelihood (SL) and minimum spanning tree (MST) are combined and applied to feature recognition and classification system...
August 3, 2018: International Journal of Psychophysiology
Marcelo Bigliassi, Costas I Karageorghis, Daniel T Bishop, Alexander V Nowicky, Michael J Wright
A block-design experiment was conducted using fMRI to examine the brain regions that activate during the execution of an isometric handgrip exercise performed at light-to-moderate-intensity in the presence of music. Nineteen healthy adults (7 women and 12 men; Mage  = 24.2, SD = 4.9 years) were exposed to an experimental condition (music [MU]) and a no-music control condition (CO) in a randomized order within a single session. Each condition lasted for 10 min and participants were required to execute 30 exercise trials (i...
July 27, 2018: International Journal of Psychophysiology
Adam A Malik, Craig A Williams, Kathryn L Weston, Alan R Barker
OBJECTIVES: Affect experienced during high-intensity interval exercise (HIIE) is dependent on work-intensity, but the influence of increasing (low-to-high (L-H)) or decreasing (high-to-low (H-L)) work-intensity during HIIE remains unclear in adolescents. The role of prefrontal cortex haemodynamics in mediating changes in affect during HIIE also remains unexplored in adolescents. We examined affect, enjoyment and cerebral haemodynamic responses to HIIE with increasing or decreasing work intensities in adolescents...
July 22, 2018: International Journal of Psychophysiology
Erin D Bigler, Chris Finuf, Tracy J Abildskov, Naomi J Goodrich-Hunsaker, Jo Ann Petrie, Dawn-Marie Wood, John R Hesselink, Elisabeth A Wilde, Jeffrey E Max
This investigation explored whether differences in cortical thickness could be detected in children who sustained a mild traumatic brain injury (mTBI) compared to those with orthopedic injury (OI) and whether cortical thickness related parental reporting of symptoms. To achieve this objective, FreeSurfer®-based cortical thickness measures were obtained in 330 children, 8 to 15 years of age, with either a history of mTBI or OI. Imaging was performed in all participants with the same 3 Tesla MRI scanner at six-months post-injury, where a parent-rated Post-Concussion Symptom Inventory (PCSI) was also obtained...
July 21, 2018: International Journal of Psychophysiology
I-Hsuan Shen, Pei-Yi Liu, Chia-Ling Chen
No abstract text is available yet for this article.
July 19, 2018: International Journal of Psychophysiology
Eoin Gavin Brown, Ann-Marie Creaven, Stephen Gallagher
Loneliness is connected to poorer health outcomes with stress reactivity proposed as an underlying mechanism. The present study explored whether the relationship between loneliness and cardiovascular reactivity (CVR) varies across acute psychological stress tasks. Eighty-eight healthy younger adults completed a psychometric measure of loneliness and participated in a standardised cardiovascular stress-testing protocol, with a public speaking and a mental arithmetic task. Cardiovascular functioning was assessed before and during the acute stress exposure...
July 17, 2018: International Journal of Psychophysiology
Shara S Grant, Katherine P Magruder, Bruce H Friedman
Caffeine, the most widely consumed drug in the world, exerts numerous effects on cardiovascular activity. Thus, it is important and advisable to control for caffeine consumption in studies examining caffeine and/or cardiovascular activity and reactivity. This paper 1) reviews the literature concerning caffeine's effects on cardiovascular parameters; 2) summarizes the widely varying protocols used to control for the drug in extant cardiovascular literature, and 3) provide guidelines for caffeine control procedures to minimize potentially confounding acute and withdrawal effects of the drug...
July 5, 2018: International Journal of Psychophysiology
Julie M Schneider, Mandy J Maguire
Event related potentials (ERPs) and time frequency analysis of the EEG can identify the temporally distinct coordination of groups of neurons across brain regions during sentence processing. Although there are strong arguments that ERP components and neural oscillations are driven by the same changes in the neural signal, others argue that the lack of clear associations between the two suggests oscillatory dynamics are more than just time frequency representations of ERP components, making it unclear how the two are related...
July 5, 2018: International Journal of Psychophysiology
Monika Eckstein, Ana C Almeida de Minas, Dirk Scheele, Ann-Kathrin Kreuder, René Hurlemann, Valery Grinevich, Beate Ditzen
The appropriate discrimination between safe and dangerous situations and the subsequent decrease of fear expression in the presence of safety signals are crucial for survival and mental health. Learning of safety associations is often studied in terms of fear extinction, that is re-learning of a previously conditioned stimulus which is now no longer positively associated with danger. Numerous studies investigated neurobiological processes of fear extinction and provide a valid picture of the underlying neural structures and endocrine processes involved...
June 28, 2018: International Journal of Psychophysiology
Brian M Hughes, Patrick R Steffen, Julian F Thayer
No abstract text is available yet for this article.
June 28, 2018: International Journal of Psychophysiology
Carina Sauer, Christian Montag, Martin Reuter, Peter Kirsch
In animal research, the neuropeptide oxytocin (OT) has been known for its role in reproduction and attachment for a longer time. There is strong evidence for an involvement of the mesolimbic dopaminergic system for these effects of OT. In contrast, human research rather concentrated on more human concepts of social cognition and behavior (e.g. trust or processing of fearful faces) and mainly focused on the amygdala as the main neurobiological substrate. To extend this view, we wanted to gain more insight into the neurobiological effects of OT in the context of reproduction and attachment in humans and compare these effects to its well-known effects on fear processing...
June 28, 2018: International Journal of Psychophysiology
Andrea L Patalano, Sydney L Lolli, Charles A Sanislow
Gratitude has been shown to reduce economic impatience. In particular, individuals induced to experience heightened gratitude are more willing to choose delayed larger rewards over immediate smaller rewards (i.e., they have lower discounting rates) than those in a neutral condition. Using the event-related potential (ERP) method, we investigated the relation between gratitude level and neurophysiological correlates. Of interest was motivated information processing, as indexed by the P3 component. Participants were administered a gratitude or a neutral mood induction followed by a temporal discounting task (choosing between a fixed immediate reward versus a future reward that varied across trials) while electroencephalogram (EEG) activity was recorded...
June 23, 2018: International Journal of Psychophysiology
Laura E Müller, Katja Bertsch, Konstatin Bülau, Sabine C Herpertz, Anna Buchheim
Early life maltreatment (ELM) is the major single risk factor for impairments in social functioning and mental health in adulthood. One of the most prevalent and most rapidly increasing forms of ELM is emotional neglect. According to bio-behavioral synchrony assumptions, the oxytocin and attachment systems play an important mediating role in the interplay between emotional neglect and social dysfunctioning. Therefore, the aim of the present study was to investigate whether fear and avoidance of social functioning, two important and highly prevalent facets of social dysfunctioning in adulthood, are shaped by emotional neglect, plasma oxytocin levels and attachment representations...
June 1, 2018: International Journal of Psychophysiology
Etienne Sallard, Lea Hartmann, Radek Ptak, Lucas Spierer
Exaggerated attentional biases toward specific elements of the environment contribute to the maintenance of several psychiatric conditions, such as biases to threatening faces in social anxiety. Although recent literature indicates that attentional bias modification may constitute an effective approach for psychiatric remediation, the underlying neurophysiological mechanisms remain unclear. We addressed this question by recording EEG in 24 healthy participants performing a modified dot-probe task in which pairs of neutral cues (colored shapes) were replaced by probe stimuli requiring a discrimination judgment...
August 2018: International Journal of Psychophysiology
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