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International Journal of Psychophysiology

Sarah H Sperry, Thomas R Kwapil, Kari M Eddington, Paul J Silvia
Discrepancies regarding the link between autonomic nervous system (ANS) activity and psychopathology may be due in part to inconsistent measurement of non-psychological factors, including eating, drinking, activity, posture, and interacting with others. Rather than sources of noise, behaviors like being active and being with others may be the behavioral pathways that connect psychopathology symptoms to autonomic activity. The present study examined whether behaviors mediate the association of depression, anxiety, and hypomanic traits with ANS by using experience sampling methodology and ambulatory impedance cardiography...
April 19, 2018: International Journal of Psychophysiology
Maciej Behnke, Lukasz D Kaczmarek
Cardiovascular responses to challenge and threat have been used extensively in psychophysiological research. In this meta-analysis, we scrutinized the body of evidence for the role of challenge and threat hemodynamic responses in predicting positive behavioral outcomes, i.e., performance quality. We accounted for cardiac output (CO), total peripheral resistance (TPR), and Challenge-Threat Index (CTI). With 17 articles covering 19 studies (total N = 1045), we observed that the literature might have been biased towards positive results...
April 19, 2018: International Journal of Psychophysiology
Lihan Wang, John Q Gan, Li Zhang, Haixian Wang
Previous neuroimaging research investigating dissociation between single-digit addition and multiplication has suggested that the former placed more reliance on the visuo-spatial processing whereas the latter on the verbal processing. However, there has been little exploration into the disassociation in spatio-temporal dynamics of the oscillatory brain activity in specific frequency bands during the two arithmetic operations. To address this issue, the electroencephalogram (EEG) data were recorded from 19 participants engaged in a delayed verification arithmetic task...
April 16, 2018: International Journal of Psychophysiology
Andrea Kóbor, Ferenc Honbolygó, Angelika B C Becker, Ulrike Schild, Valéria Csépe, Claudia K Friedrich
Languages with contrastive stress, such as English or German, distinguish some words only via the stress status of their syllables, such as "CONtent" and "conTENT" (capitals indicate a stressed syllable). Listeners with a fixed-stress native language, such as Hungarian, have difficulties in explicitly discriminating variation of the stress position in a second language (L2). However, Event-Related Potentials (ERPs) indicate that Hungarian listeners implicitly notice variation from their native fixed-stress pattern...
April 11, 2018: International Journal of Psychophysiology
Antonio R Hidalgo-Muñoz, Damien Mouratille, Nadine Matton, Mickaël Causse, Yves Rouillard, Radouane El-Yagoubi
In aviation, emotion and cognitive workload can considerably increase the probability of human error. An accurate online physiological monitoring of pilot's mental state could prevent accidents. The heart rate (HR) and heart rate variability (HRV) of 21 private pilots were analysed during two realistic flight simulator scenarios. Emotion was manipulated by a social stressor and cognitive workload with the difficulty of a secondary task. Our results confirmed the sensitivity of the HR to cognitive demand and training effects, with increased HR when the task was more difficult and decreased HR with training (time-on-task)...
April 5, 2018: International Journal of Psychophysiology
Ludovico Mineo, Alexander Fetterman, Carmen Concerto, Michael Warren, Carmenrita Infortuna, David Freedberg, Eileen Chusid, Eugenio Aguglia, Fortunato Battaglia
The phenomenon of motor resonance (the increase in motor cortex excitability during observation of actions) has been previously described. Transcranial magnetic stimulation (TMS) studies have demonstrated a similar effect during perception of implied motion (IM). The left dorsolateral prefrontal cortex (DLPFC) seems to be activated during action observation. Furthermore, the role of this brain area in motor resonance to IM is yet to be investigated. Fourteen healthy volunteers were enrolled into the study. We used transcranial direct current stimulation (tDCS) to stimulate DLPFC aiming to investigate whether stimulation with different polarities would affect the amplitude of motor evoked potential collected during observation of images with and without IM...
April 5, 2018: International Journal of Psychophysiology
John M Ruiz, David Sbarra, Patrick R Steffen
It is not wise to generalize psychophysiological findings from WEIRD (Western, Educated, Industrialized, Rich, Democratic) samples to all people and yet this occurs frequently in research. Case-in-point is our understanding of psychophysiological responses to stress which suggest universality despite our knowledge that these pathways are moderated by factors such as ethnicity and culture. Here we discuss the epidemiological phenomenon commonly referred to as the Hispanic health paradox to illustrate the importance of culture in understanding stress...
April 5, 2018: International Journal of Psychophysiology
Wendy C Birmingham, Julianne Holt-Lunstad
There is a rich literature on social support and physical health, but research has focused primarily on the protective effects of social relationship. The stress buffering model asserts that relationships may be protective by being a source of support when coping with stress, thereby blunting health relevant physiological responses. Research also indicates relationships can be a source of stress, also influencing health. In other words, the social buffering influence may have a counterpart, a social aggravating influence that has an opposite or opposing effect...
April 4, 2018: International Journal of Psychophysiology
Florian Scharf, Steffen Nestler
Temporal exploratory factor analysis (EFA) is commonly applied to ERP data sets to reduce their dimensionality and the ambiguity with respect to the underlying components. However, the risk of variance misallocation (i.e., the incorrect allocation of condition effects) has raised concerns with regard to EFA usage. Here, we show that variance misallocation occurs because of biased factor covariance estimates and the temporal overlap between the underlying components. We also highlight the consequences of our findings for the analysis of ERP data with EFA...
April 2, 2018: International Journal of Psychophysiology
Eva Montero-López, Ana Santos-Ruiz, M Carmen García-Ríos, Manuel Rodríguez-Blázquez, Heather L Rogers, María Isabel Peralta-Ramírez
The menstrual cycle involves significant changes in hormone levels, causing physical and psychological changes in women that are further influenced by stress. The aim of this study was to understand the relationship between menstrual cycle phase and salivary cortisol patterns during the day as well as the salivary cortisol response to the Virtual Reality Version of the Trier Social Stress Test (TSST-VR). Forty two women not taking oral contraceptives (24 in follicular phase and 18 in luteal phase) participated in the study...
March 29, 2018: International Journal of Psychophysiology
Helmut K Lackner, Katharina Reiter-Scheidl, Nilüfer Aydin, Corinna M Perchtold, Elisabeth M Weiss, Ilona Papousek
The study aimed at investigating the immediate cardiac effect of the sudden perception of other people's laughter after experimentally manipulating healthy participants' proneness to experience laughter as a cue of social threat. We expected that participants would show cardiac signs of freezing (i.e., sustained heart rate deceleration immediately after perception of the laughter) after prior social rejection but not or less so after prior acceptance, due to an increased bias to perceive the ambiguous social signal as a cue of social threat and rejection after rejection had been primed...
March 28, 2018: International Journal of Psychophysiology
Jonas Röhricht, Han-Gue Jo, Marc Wittmann, Stefan Schmidt
While the contingent negative variation (CNV) has been the subject of extensive research over the last fifty years, the maximum duration during which such cortical negativity can be maintained has, to the best of our knowledge, never been systematically explored. Participants were presented with the classic S1-S2 paradigm task, where a warning stimulus (S1) acts as a cue for the appearance of an imperative stimulus (S2). A fast motor response was required upon S2 arrival. Inter-stimulus intervals (ISIs) of 2...
March 28, 2018: International Journal of Psychophysiology
Katherine R Gamble, Jean M Vettel, Debra J Patton, Marianna D Eddy, F Caroline Davis, Javier O Garcia, Derek P Spangler, Julian F Thayer, Justin R Brooks
Decision making is one of the most vital processes we use every day, ranging from mundane decisions about what to eat to life-threatening choices such as how to avoid a car collision. Thus, the context in which our decisions are made is critical, and our physiology enables adaptive responses that account for how environmental stress influences our performance. The relationship between stress and decision making can additionally be affected by one's expertise in making decisions in high-threat environments, where experts can develop an adaptive response that mitigates the negative impacts of stress...
March 23, 2018: International Journal of Psychophysiology
Samantha Dinga, Di Wu, Shuyang Huang, Caiyun Wu, Xiaoshan Wang, Jingping Shi, Yue Hu, Chun Liang, Fawen Zhang, Meng Lu, Kimberly Leiken, Jing Xiang
The brain undergoes enormous changes during childhood. Little is known about how the brain develops to serve word processing. The objective of the present study was to investigate the maturational changes of word processing in children and adolescents using magnetoencephalography (MEG). Responses to a word processing task were investigated in sixty healthy participants. Each participant was presented with simultaneous visual and auditory word pairs in "match" and "mismatch" conditions. The patterns of neuromagnetic activation from MEG recordings were analyzed at both sensor and source levels...
March 23, 2018: International Journal of Psychophysiology
Alysson E Light, Julianne Holt-Lunstad, Chris L Porter, Kathleen C Light
BACKGROUND: In animals, adverse early experience alters oxytocinergic and glucocorticoid activity and maternal behavior in adulthood. This preliminary study explored associations among childhood trauma (loss of a parent or sexual abuse in childhood), maternal self-efficacy, and leukocyte gene expression (mRNA) of oxytocin and glucocorticoid receptors (OXTR and NR3C1) in mothers of infants. METHODS: 62 mothers (20 with early life trauma) with healthy 3-month old infants reported maternal self-efficacy, depression, infant temperament, and overall social support; the effects of early trauma on these measures were assessed...
March 23, 2018: International Journal of Psychophysiology
Nadezhda Ju Kozhushko, Zhanna V Nagornova, Sergey A Evdokimov, Natalia V Shemyakina, Valery A Ponomarev, Ekaterina P Tereshchenko, Jury D Kropotov
This study aimed to reveal electrophysiological markers of communicative and cognitive dysfunctions of different severity in children with autism spectrum disorder (ASD). Eyes-opened electroencephalograms (EEGs) of 42 children with ASD, divided into two groups according to the severity of their communicative and cognitive dysfunctions (24 with severe and 18 children with less severe ASD), and 70 age-matched controls aged 4-9 years were examined by means of spectral and group independent component (gIC) analyses...
March 22, 2018: International Journal of Psychophysiology
José Francisco Tornero-Aguilera, Vicente Javier Clemente-Suárez
The present study aimed to analyze the effect of underground operations on the psychophysiological and memory response of soldiers taking into consideration experience, the use of nocturne vision systems and previous combat actions on the psychophysiological response. Seventy participants were recruited and divided in four groups, three experimental groups with different experimental conditions, SNFV (Soldiers No-Fire Night-Vision), SFV (Soldiers Fire Night-Vision), SNFNV (Soldiers No-Fire No Night-Vision), and one control group, CNFV (Control No-Fire Night-Vision)...
March 22, 2018: International Journal of Psychophysiology
Marlies E van Bochove, Leen De Taeye, Robrecht Raedt, Kristl Vonck, Alfred Meurs, Paul Boon, Ine Dauwe, Wim Notebaert, Tom Verguts
Suppressing irrelevant information in decision making is an essential everyday skill. We studied whether this ability could be improved in epileptic patients during vagus nerve stimulation (VNS). VNS is known to increase norepinephrine (NE) in the brain. NE is thought to improve several aspects of cognitive control, including the suppression of irrelevant information. Nineteen epileptic VNS patients executed the Eriksen flanker task twice, both during on and off stimulation. Distractor interference was indexed by the congruency effect, a standard empirical marker of cognitive control...
March 21, 2018: International Journal of Psychophysiology
Matthew D Bachman, Edward M Bernat
A growing body of work suggests that the P300 (P3) event-related potential (ERP) component is better understood as a mixture of task-relevant processes (Polich, 2007). This converges with earlier time-frequency work suggesting that the P3b is primarily composed of centroparietal delta (0.5-3 Hz) and frontocentral theta (3-7 Hz) activity. Within this study (N = 229), we hope to re-affirm these prior ideas and expand upon them in several crucial ways, reassessing how delta and theta contribute to the visual oddball P3b through the lens of several recent decades of additional P3b research...
March 21, 2018: International Journal of Psychophysiology
Guangheng Dong, Hui Li, Yifan Wang, Marc N Potenza
In this study, we investigated neural responses during resting-state and reward-task-based fMRI and how these related to individual differences in self-reported reward sensitivity. Resting-state fMRI data were collected from 191 college students, and 60 of these individuals further finished a reward-related fMRI task. Self-reported reward-approach tendencies were assessed using the behavioral activation scale. Behavioral activation scale scores were positively correlated with brain activations in the striatum bilaterally during reward processing...
March 21, 2018: International Journal of Psychophysiology
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