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International Journal of Psychophysiology

Ting Zhang, Qin Zhang, Cuicui Wang, Antao Chen
Dopamine (DA) is known to modulate response inhibition (RI). In contrast to the abundant adult studies, only few developmental studies have focused on this topic. Moreover, the mechanism underlying the modulation of RI by the DA system from childhood to adulthood remains unclear. We aimed to assess whether the relationship between DA and RI during late childhood and young adulthood is similar. Accordingly, DA function was measured using the spontaneous eye blink rate (EBR), whereas RI ability was tested using the Go/Nogo task...
February 17, 2017: International Journal of Psychophysiology
Boris Yazmir, Miriam Reiner
What are the neural responses to success and failure in a throwing task? To answer this question, we compared Event Related Potentials (ERPs) correlated with success and failure during a highly-ecological-virtual game. Participants played a tennis-like game in an immersive 3D virtual world, against a computer player, by controlling a virtual tennis racket with a force feedback robotic arm. Results showed that success, i.e. hitting the target, and failure, by missing the target, evoked ERP's that differ by peak, latencies, scalp signal distributions, sLORETA source estimation, and time-frequency patterns...
February 11, 2017: International Journal of Psychophysiology
A H Mehrnam, A M Nasrabadi, M Ghodoosi, A Mohammadian, Sh Torabi
The purpose of this study is to extend a feature set with non-linear features to improve classification rate of guilty and innocent subjects. Non-linear features can provide extra information about phase space. The Event-Related Potential (ERP) signals were recorded from 49 subjects who participated in concealed face recognition test. For feature extraction, at first, several morphological characteristics, frequency bands, and wavelet coefficients (we call them basic-features) are extracted from each single-trial ERP...
February 9, 2017: International Journal of Psychophysiology
Thomas Plieger, Martin Melchers, Annabel Vetterlein, Janina Görtz, Sarah Kuhn, Melissa Ruppel, Martin Reuter
INTRODUCTION: Emotion regulation is an important everyday-life skill to reduce harm and stress. Consequently, research shows associations between psychopathologies and emotional dysregulation. The serotonin transporter polymorphism (5-HTTLPR) has repeatedly been associated to phenotypes and syndromes related to emotional dysregulation. However, there is no study showing any direct effects of 5-HTTLPR genotype and emotion regulation. Hence, the aim of the present study was to draw a link between 5-HTTLPR to emotion regulation...
February 9, 2017: International Journal of Psychophysiology
Mattie Tops, Markus Quirin, Maarten A S Boksem, Sander L Koole
Several lines of research in animals and humans converge on the distinction between two basic large-scale brain networks of self-regulation, giving rise to predictive and reactive control systems (PARCS). Predictive (internally-driven) and reactive (externally-guided) control are supported by dorsal versus ventral corticolimbic systems, respectively. Based on extant empirical evidence, we demonstrate how the PARCS produce frontal laterality effects in emotion and motivation. In addition, we explain how this framework gives rise to individual differences in appraising and coping with challenges...
February 9, 2017: International Journal of Psychophysiology
Li Wan, Zachary Thomas, Sindhura Pisipati, Stephen P Jarvis, Nash N Boutros
Schizotypy is a term that refers to a continuum of personality characteristics, emerging from mental states ranging from organized and normal to unorganized and disordered; with the latter tending to include individuals with high schizotypal scores as well as those diagnosed with schizotypal personality disorder. Evidence from psychophysiological studies has found a relative weakness in the inhibitory functioning, including prepulse inhibition (PPI), sensory gating (SG), and antisaccade eye movement (AEM) in schizotypy and schizophrenia...
February 8, 2017: International Journal of Psychophysiology
Xianxin Meng, Ling Zhang, Wenwen Liu, XinSheng Ding, Hong Li, Jiemin Yang, JiaJin Yuan
Although the effects of emotion of different emotional intensity on memory have been investigated, it remain unclear whether the influence of emotional intensity on memory varies depending on the stimulus valence polarity (i.e., positive or negative). To address this, event-related potentials were recorded when subjects performed a continuous old/new discrimination task, for highly negative (HN), mildly negative (MN) and neutral pictures in the negative block; and for highly positive (HP), mildly positive (MP) and neutral pictures in the positive block...
February 7, 2017: International Journal of Psychophysiology
Agostino Brugnera, Cristina Zarbo, Roberta Adorni, Giorgio A Tasca, Massimo Rabboni, Emi Bondi, Angelo Compare, Kaoru Sakatani
The purpose of this study was to assess the interrelation between cortical, cardiovascular, behavioural, and psychological responses to acute stressors in a large sample of healthy individuals. To date, there are only preliminary evidences for a significant association among these psychophysiological indexes during a stress task. 65 participants completed psychological questionnaires (Beck Depression Inventory and State-Trait Anxiety Inventory) and underwent a psychosocial math stress task, consisting of a control and an experimental (i...
February 4, 2017: International Journal of Psychophysiology
Qinting Zhang, Wu Hong, Haozhe Li, Fanglan Peng, Fan Wang, Ningning Li, Hui Xiang, Zongfeng Zhang, Yousong Su, Yueqi Huang, Shengyu Zhang, Guoqin Zhao, Rubai Zhou, Ling Mao, Zhiguang Lin, Weixiong Cai, Yiru Fang, Bin Xie, Min Zhao
BACKGROUND: Many studies have indicated that immune dysfunction might be involved in the physiopathology of schizophrenia and aggression. This study aimed to investigate the correlation between high-sensitivity C-reactive protein (hsCRP), interleukin (IL)-10 and clinical characteristics, especially aggression, and to explore the potential role of hsCRP and IL-10 as plasma biomarkers of schizophrenia. METHODS: Forty-one patients with schizophrenia and forty healthy individuals were enrolled...
February 4, 2017: International Journal of Psychophysiology
Lynne Lieberman, Elizabeth S Stevens, Carter J Funkhouser, Anna Weinberg, Casey Sarapas, Ashley A Huggins, Stewart A Shankman
Emotion-modulated startle is a frequently used method in affective science. Although there is a growing literature on the reliability of this measure, it is presently unclear how many startle responses are necessary to obtain a reliable signal. The present study therefore evaluated the reliability of startle responding as a function of number of startle responses (NoS) during a widely used threat-of-shock paradigm, the NPU-threat task, in a clinical (N=205) and non-clinical (N=92) sample. In the clinical sample, internal consistency was also examined independently for healthy controls vs...
February 2, 2017: International Journal of Psychophysiology
Kristina T Legget, Allison K Hild, Sarah E Steinmetz, Steven T Simon, Donald C Rojas
The auditory steady-state response (ASSR) is increasingly being used as a biomarker in neuropsychiatric disorders, but research investigating the test-retest reliability of this measure is needed. We previously reported ASSR reliability, measured by electroencephalography (EEG), to 40Hz amplitude-modulated white noise and click train stimuli. The purpose of the current study was to (a) assess the reliability of the MEG-measured ASSR to 40Hz amplitude-modulated white noise and click train stimuli, and (b) compare test-retest reliability between MEG and EEG measures of ASSR, which has not previously been investigated...
February 1, 2017: International Journal of Psychophysiology
Athina Zafeiriou, Guido H E Gendolla
Based on previous research on implicit effects on effort-related cardiovascular response and evidence that aging is associated with cognitive difficulties, we tested whether the mere activation of the aging stereotype can systematically influence young individuals' effort-mobilization during cognitive performance. Young participants performed an objectively difficult short-term memory task during which they processed elderly vs. youth primes and expected low vs. high incentive for success. When participants processed elderly primes during the task, we expected cardiovascular response to be weak in the low-incentive condition and strong in the high-incentive condition...
January 26, 2017: International Journal of Psychophysiology
Kerstin Brinkmann, Jessica Franzen
The present study extends past research about reduced reward responsiveness in depression by assessing effort-related cardiovascular responses during anticipation of a social reward. Dysphoric (i.e., subclinically depressed) and nondysphoric participants worked on a cognitive task. Half the participants in each group expected the possibility to subscribe to a social exchange internet site. Effort mobilization during task performance was assessed by participants' cardiovascular reactivity. Confirming the predictions, nondysphoric participants in the social-reward condition had higher reactivity of pre-ejection period, systolic blood pressure, and heart rate, compared to the other three cells...
January 24, 2017: International Journal of Psychophysiology
Ilse H van de Groep, Lucas M de Haas, Iris Schutte, Erik Bijleveld
Although the existence of 'choking under pressure' is well-supported by research, its biological underpinnings are less clear. In this research, we examined two individual difference variables that may predict whether people are likely to perform poorly in high-incentive conditions: baseline eye blink rate (EBR; reflecting dopamine system functioning) and baseline anterior hemispheric asymmetry (an indicator of goal-directed vs. stimulus driven processing). Participants conducted a switch task under control vs...
January 23, 2017: International Journal of Psychophysiology
Stephen H Fairclough, Kate Ewing
According to motivational intensity theory, effort is proportional to the level of task demand provided that success is possible and successful performance is deemed worthwhile. The current study represents a simultaneous manipulation of demand (working memory load) and success importance (financial incentive) to investigate neurophysiological (EEG) and cardiovascular measures of effort. A 2×2 repeated-measures study was conducted where 18 participants performed a n-back task under three conditions of demand: easy (1-back), hard (4-back) and very hard (7-back)...
January 19, 2017: International Journal of Psychophysiology
Marta Knijnik Lucion, Vanessa Oliveira, Lisiane Bizarro, Adrianne Rahde Bischoff, Patricia Pelufo Silveira, Marcia Kauer-Sant'Anna
Human survival depends on care received early in life. Infants need to capture adults' attention to have their basic needs met. Therefore, infant stimuli are prioritized by the attention system in adults, resulting in an attentional bias toward infant faces. We conducted a systematic review of the literature on behavioral measures of attentional bias toward infant faces. PubMed, PsycINFO, and ISI Web of Knowledge databases were used. The review suggests the existence of a measurable attentional bias toward infant faces and a positive correlation between attentional bias toward infant distress and the quality of mother-infant relationship...
January 19, 2017: International Journal of Psychophysiology
Leigh Ann Holterman, Dianna K Murray-Close, Nicole L Breslend
No abstract text is available yet for this article.
January 19, 2017: International Journal of Psychophysiology
Laura R Rabbitt, Daniel M Roberts, Craig G McDonald, Matthew S Peterson
There is extensive evidence that the contralateral delay activity (CDA), a scalp recorded event-related brain potential, provides a reliable index of the number of objects held in visual working memory. Here we present evidence that the CDA not only indexes visual object working memory, but also the number of locations held in spatial working memory. In addition, we demonstrate that the CDA can be predictably modulated by the type of encoding strategy employed. When individual locations were held in working memory, the pattern of CDA modulation mimicked previous findings for visual object working memory...
January 12, 2017: International Journal of Psychophysiology
Blair Saunders, Hause Lin, Marina Milyavskaya, Michael Inzlicht
The detection of conflict between incompatible impulses, thoughts, and actions is a ubiquitous source of motivation across theories of goal-directed action. In this overview, we explore the hypothesis that conflict is emotive, integrating perspectives from affective science and cognitive neuroscience. Initially, we review evidence suggesting that the mental and biological processes that monitor for information processing conflict-particularly those generated by the anterior midcingulate cortex-track the affective significance of conflict and use this signal to motivate increased control...
January 11, 2017: International Journal of Psychophysiology
Bin Lv, Chang Su, Lei Yang, Tongning Wu
The physiological responses to human thermal stimulation have been widely investigated, but most of them are mainly concerned about the whole body thermal stimulation. In this study, we investigated the effects of stimulus mode and ambient temperature on cerebral responses during local thermal stimulation on hand. The left hands were stimulated by metal thermostat based and thermostatic water based stimulators at different stimulated temperatures (38°C, 40°C, 42°C and 44°C) and different ambient temperatures (25°C and 32°C)...
January 10, 2017: International Journal of Psychophysiology
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