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Psychophysiology

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https://www.readbyqxmd.com/read/28736814/interactions-between-empathy-and-resting-heart-rate-in-early-adolescence-predict-violent-behavior-in-late-adolescence-and-early-adulthood
#1
Chardée A Galán, Daniel Ewon Choe, Erika E Forbes, Daniel S Shaw
BACKGROUND: Although resting heart rate (RHR) and empathy are independently and negatively associated with violent behavior, relatively little is known about the interplay between these psychophysiological and temperament-related risk factors. METHODS: Using a sample of 160 low-income, racially diverse men followed prospectively from infancy through early adulthood, this study examined whether RHR and empathy during early adolescence independently and interactively predict violent behavior and related correlates in late adolescence and early adulthood...
July 24, 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/28736798/sympathetic-under-arousal-and-externalizing-behavior-problems-in-children-with-autism-spectrum-disorder
#2
Jason K Baker, Rachel M Fenning, Stephen A Erath, Brian R Baucom, Jacquelyn Moffitt, Mariann A Howland
Children with autism spectrum disorder (ASD) commonly exhibit co-occurring externalizing behavior problems, which can impede learning opportunities and contribute significantly to caregiver stress. Substantial theory and research has linked under-arousal of the sympathetic nervous system to increased externalizing problems in children without ASD, but under-arousal has not been considered as an explanatory mechanism for individual differences among children with ASD. We tested the notion that lower electrodermal activity (EDA) would predict more externalizing problems in children with ASD, and considered the degree to which parent co-regulatory support could buffer this risk...
July 24, 2017: Journal of Abnormal Child Psychology
https://www.readbyqxmd.com/read/28731448/left-frontal-hub-connectivity-during-memory-performance-supports-reserve-in-aging-and-mild-cognitive-impairment
#3
Nicolai Franzmeier, Julia C Hartmann, Alexander Nw Taylor, Migeul A Araque Caballero, Lee Simon-Vermot, Katharina Buerger, Lana M Kambeitz-Ilankovic, Birgit Ertl-Wagner, Claudia Mueller, Cihan Catak, Daniel Janowitz, Robert Stahl, Martin Dichgans, Marco Duering, Michael Ewers
Reserve in aging and Alzheimer's disease (AD) is defined as maintaining cognition at a relatively high level in the presence of neurodegeneration, an ability often associated with higher education among other life factors. Recent evidence suggests that higher resting-state functional connectivity within the frontoparietal control network, specifically the left frontal cortex (LFC) hub, contributes to higher reserve. Following up these previous resting-state fMRI findings, we probed memory-task related functional connectivity of the LFC hub as a neural substrate of reserve...
July 17, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28729918/white-matter-sexual-dimorphism-of-the-adult-human-brain
#4
Ali K Bourisly, Grace Gejo, Abrar A Hayat, Lamya Alsarraf, Fatima M Dashti, Margherita Di Paola
Sex-biased psychophysiology, behavior, brain function, and conditions are extensive, yet underlying structural brain mechanisms remain unclear. There is contradicting evidence regarding sexual dimorphism when it comes to brain structure, and there is still no consensus on whether or not there exists such a dimorphism for brain white matter. Therefore, we conducted a voxel-based morphometry (VBM) analysis along with global volume analysis for white matter across sex. We analyzed 384 T1-weighted MRI brain images (192 male, 192 female) to investigate any differences in white matter (WM) between males and females...
2017: Translational Neuroscience
https://www.readbyqxmd.com/read/28725863/empathy-in-the-clinician-patient-relationship-the-role-of-reciprocal-adjustments-and-processes-of-synchrony
#5
Arnstein Finset, Knut Ørnes
The clinician-patient relationship is asymmetric in the sense that clinicians and patients have different roles in the medical consultation. Yet, there are qualities of reciprocity and mutuality in many clinician-patient encounters, and we suggest that such reciprocity may be related to the phenomenon of empathy. Empathy is often defined as the capacity to place oneself in another's position, but empathy may also be understood as a sequence of reciprocal turns-of talk, starting with the patient's expression of emotion, followed by the perception, vicarious experience, and empathic response by the clinician...
June 2017: Journal of patient experience
https://www.readbyqxmd.com/read/28719827/mixed-evidence-for-the-potential-of-non-invasive-transcutaneous-vagal-nerve-stimulation-to-improve-the-extinction-and-retention-of-fear
#6
A M Burger, B Verkuil, H Fenlon, L Thijs, L Cools, H C Miller, B Vervliet, I Van Diest
Extinction memories are fragile and their formation has been proposed to partially rely on vagus nerve activity. We tested whether stimulating the auricular branch of the vagus (transcutaneous VNS; tVNS) accelerates extinction and reduces spontaneous recovery of fear. Forty-two healthy students participated in a 3-day fear conditioning study, where we tested fear acquisition (day 1), fear extinction (day 2) and the retention of the extinction memory (day 3). During extinction, participants were randomly allocated to receive tVNS or sham stimulation concurrently with each CS presentation...
July 8, 2017: Behaviour Research and Therapy
https://www.readbyqxmd.com/read/28709960/eating-behavior-style-predicts-craving-and-anxiety-experienced-in-food-related-virtual-environments-by-patients-with-eating-disorders-and-healthy-controls
#7
Marta Ferrer-Garcia, Joana Pla-Sanjuanelo, Antonios Dakanalis, Ferran Vilalta-Abella, Giuseppe Riva, Fernando Fernandez-Aranda, Isabel Sánchez, Joan Ribas-Sabaté, Alexis Andreu-Gracia, Neli Escandón-Nagel, Osane Gomez-Tricio, Virginia Tena, José Gutiérrez-Maldonado
Eating behavior style (emotional, restrictive, or external) has been proposed as an explanation for the differences in response to food-related cues between people who overeat and those who do not, and has been also considered a target for the treatment of eating disorders (EDs) characterized by lack of control over eating and weight-related (overweight/obesity) conditions. The aim of this study was to analyze the relationship between eating behavior style and psychophysiological responses (self-reported food craving and anxiety) to food-related virtual reality (VR) environments in outpatients with bulimia nervosa (BN) and binge eating disorder (BED) and to compare them with healthy participants...
July 11, 2017: Appetite
https://www.readbyqxmd.com/read/28701822/the-difference-of-neural-networks-between-bimanual-antiphase-and-in-phase-upper-limb-movements-a-preliminary-functional-magnetic-resonance-imaging-study
#8
Qiang Lin, Hai Li, Yu-Rong Mao, Wai-Leung Lo, Jiang-Li Zhao, Ling Chen, Yan Leng, Dong-Feng Huang, Le Li
Most daily movements require some degree of collaboration between the upper limbs. The neural mechanisms are bimanual-condition specific and therefore should be different between different activities. In this study, we aimed to explore intraregional activation and interregional connectivity during bimanual movement by functional magnetic resonance imaging (fMRI). Ten right-handed, normal subjects were recruited. The neural correlates of unimanual (right side) and bimanual (in-phase and antiphase) upper limb movements were investigated...
2017: Behavioural Neurology
https://www.readbyqxmd.com/read/28701820/scrutinizing-the-emotional-nature-of-intuitive-coherence-judgments
#9
Thea Zander, Ana L Fernandez Cruz, Martin P Winkelmann, Kirsten G Volz
Dual-system models propose that cognitive processing can occur either intuitively or deliberately. Unlike deliberate decision strategies, intuitive ones are assumed to have an emotional component attached to the decision process. We tested if intuitive decisions are indeed accompanied by an emotional response while deliberate decisions are not. Specifically, we conducted a psychophysiological study in which participants were instructed to decide either intuitively or deliberately if three simultaneously presented words were semantically coherent or incoherent (triad task)...
July 2017: Journal of Behavioral Decision Making
https://www.readbyqxmd.com/read/28699082/combat-stress-decreases-memory-of-warfighters-in-action
#10
Rosa Delgado-Moreno, José Juan Robles-Pérez, Vicente Javier Clemente-Suárez
The present research aimed to analyze the effect of combat stress in the psychophysiological response and attention and memory of warfighters in a simulated combat situation. Variables of blood oxygen saturation, heart rate, blood glucose, blood lactate, body temperature, lower body muscular strength manifestation, cortical arousal, autonomic modulation, state anxiety and memory and attention through a postmission questionnaire were analyzed before and after a combat simulation in 20 male professional Spanish Army warfighters...
August 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28691853/assessment-of-cardiac-autonomic-tone-following-long-sudarshan-kriya-yoga-in-art-of-living-practitioners
#11
Lakshmi Bhaskar, Chhaya Kharya, K K Deepak, Vinod Kochupillai
OBJECTIVE: The breathing processes are known to modulate cardiac autonomic tone and improve psychological status. We investigated cardiac autonomic tone following long Sudarshan Kriya Yoga (SKY) using heart rate variability (HRV) and skin conductance level (SCL). METHODS: Thirty healthy volunteers (age 28.3 ± 8.4 years; 23 M: 7 F) participated in the study. Electrocardiogram (ECG) and SCL were recorded for 5 min each, before and after long SKY. Long SKY is a combination of pranayama and cyclic rhythmic breathing and is performed by following the guided audio instructions...
July 10, 2017: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
https://www.readbyqxmd.com/read/28688266/neural-hormonal-responses-to-negative-affective-stimuli-impact-of-dysphoric-mood-and-sex
#12
K Mareckova, L Holsen, R Admon, S Whitfield-Gabrieli, L J Seidman, S L Buka, A Klibanski, J M Goldstein
BACKGROUND: Maladaptive responses to negative affective stimuli are pervasive, including clinically ill and healthy people, and men and women respond differently at neural and hormonal levels. Inspired by the Research Domain Criteria initiative, we used a transdiagnostic approach to investigate the impact of sex and dysphoric mood on neural-hormonal responses to negative affective stimuli. METHODS: Participants included 99 individuals with major depressive disorder, psychosis and healthy controls...
November 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28686559/-attenuated-psychosis-syndrome-a-new-diagnostic-category-for-further-study-in-dsm-5
#13
G Samiotakis, C Kollias, H Lazaratou, D Anagnostopoulos, V Kontaxakis
In recent years an increasing number of studies focus on the issue of early diagnosis and intervention. At the same time, a large number of special service units for early psychosis have been established around the world especially in Australia, USA, UK, Germany etc. Recently, similar units operate in Greece also. The Diagnostic Manual of Mental Disorders of the American Psychiatric Association in its latest edition in 2013 (DSM-5), introduced the category "Attenuated Psychosis Syndrome" (APS) for people with early psychotic experiences in the section: "Conditions for further study '...
April 2017: Psychiatrikē, Psychiatriki
https://www.readbyqxmd.com/read/28682086/constructing-bias-conceptualization-breaks-the-link-between-implicit-bias-and-fear-of-black-americans
#14
Kent M Lee, Kristen A Lindquist, B Keith Payne
Negative affect toward outgroup members has long been known to predict discriminatory behavior. However, psychological constructionist theories of emotion suggest that negative affect may not always reflect antipathy for outgroup members. Rather, the subjective experience depends on how negative affect is conceptualized as specific discrete emotions (e.g., fear vs. sympathy). Our current research integrates theories of implicit bias with psychological constructionist theories of emotion to understand the implications of negative affect toward outgroup members...
July 6, 2017: Emotion
https://www.readbyqxmd.com/read/28681106/proactive-and-reactive-aggression-subgroups-in-typically-developing-children-the-role-of-executive-functioning-psychophysiology-and-psychopathy
#15
Nicholas D Thomson, Luna C M Centifanti
This study aimed to assess whether groups of aggressive children differed on psychopathic traits, and neuropsychological and neurobiological measures of prefrontal functioning consistent with the objectives of their aggression-reactive or proactive. Including 110 typically developing children (9-11 years), a latent class analysis identified a low aggression group, a high reactive aggression group, and a mixed (high reactive and proactive) aggression group. Results show high callous-unemotional traits and low resting respiratory sinus arrhythmia increased the likelihood of children being in the mixed aggression group, when compared to the reactive and low aggression groups...
July 5, 2017: Child Psychiatry and Human Development
https://www.readbyqxmd.com/read/28676834/exponentially-modified-peak-functions-in-biomedical-sciences-and-related-disciplines
#16
A Golubev
In many cases relevant to biomedicine, a variable time, which features a certain distribution, is required for objects of interest to pass from an initial to an intermediate state, out of which they exit at random to a final state. In such cases, the distribution of variable times between exiting the initial and entering the final state must conform to the convolution of the first distribution and a negative exponential distribution. A common example is the exponentially modified Gaussian (EMG), which is widely used in chromatography for peak analysis and is long known as ex-Gaussian in psychophysiology, where it is applied to times from stimulus to response...
2017: Computational and Mathematical Methods in Medicine
https://www.readbyqxmd.com/read/28676251/the-not-so-bitter-pill-effects-of-combined-oral-contraceptives-on-peripheral-physiological-indicators-of-emotional-reactivity
#17
Diana Armbruster, Clemens Kirschbaum, Alexander Strobel
Combined oral contraceptives (COC) are used by millions of women worldwide. Although findings are not entirely consistent, COC have been found to impact on brain function and, thus, to modulate affective processes. Here, we investigated electro-physiological responses to emotional stimuli in free cycling women in both the early follicular and late luteal phase as well as in COC users. Skin conductance response (SCR), startle reflex, corrugator and zygomaticus activity were assessed. COC users showed reduced overall startle magnitude and SCR amplitude, but heightened overall zygomaticus activity, although effect sizes were small...
July 19, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/28675471/assessment-of-skin-conductance-in-african-american-and-non-african-american-participants-in-studies-of-conditioned-fear
#18
M Alexandra Kredlow, Suzanne L Pineles, Sabra S Inslicht, Marie-France Marin, Mohammed R Milad, Michael W Otto, Scott P Orr
Skin conductance (SC) is a psychophysiological measure of sympathetic nervous system activity that is commonly used in research to assess conditioned fear responses. A portion of individuals evidence very low or unmeasurable SC levels (SCL) and/or response (SCR) during fear conditioning, which precludes the use of their SC data. The reason that some individuals do not produce measurable SCL and/or SCR is not clear; some early research suggested that race may be an influencing factor. In the current article, archival data from five fear conditioning samples collected from four different laboratories were examined to explore SCL and SCR magnitude in African American (AA) and non-African American (non-AA) participants...
July 4, 2017: Psychophysiology
https://www.readbyqxmd.com/read/28674597/sleep-hygiene-education-improves-sleep-indices-in-elite-female-athletes
#19
Shannon O'Donnell, Matthew W Driller
The importance of sleep in providing psychophysiological recovery in elite athletes is often overlooked. In other populations (eg shift workers and adolescent students), sleep hygiene education may serve to acutely improve sleep indices. However, this is yet to be examined in an elite athlete setting. Therefore, the aim of the current study was to evaluate the effect of a sleep hygiene education session on sleep indices in elite athletes. The study involved 26 elite female netball athletes performing one week of baseline sleep monitoring (PRE), followed by a sleep hygiene education session and a further week of sleep monitoring (POST) in a single group, pre- post design...
2017: International Journal of Exercise Science
https://www.readbyqxmd.com/read/28672276/biological-stress-reactivity-as-an-index-of-the-two-polarities-of-the-experience-model
#20
Jaime R Silva, Anastassia Vivanco-Carlevari, Mauricio Barrientos, Claudio Martínez, Luis A Salazar, Mariane Krause
The two-polarities model of personality argues that experience is organized around two axes: interpersonal relatedness and self-definition. Differential emphasis on one of these poles defines adaptive and pathological experiences, generating anaclitic or introjective tendencies. The anaclitic pattern, on one hand, has been conceptually related with an exaggerated emphasis on interpersonal relatedness. On the other hand, the introjective pattern has been connected to high levels of self-criticism. The aim of this study was to investigate the psychophysiological basis for this relationship...
June 24, 2017: Psychoneuroendocrinology
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