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Psychophysiology

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https://www.readbyqxmd.com/read/28646388/skin-conductance-reactivity-to-standardized-virtual-reality-combat-scenes-in-veterans-with-ptsd
#1
Mascha van 't Wout, Christopher M Spofford, William S Unger, Elizabeth B Sevin, M Tracie Shea
Interest in virtual reality (VR) as a clinical tool to augment posttraumatic stress (PTSD) treatment has grown substantially in recent years due to advances in VR technology. Moreover, its potential assisted use in the PTSD diagnostic process has been recognized. In this study we examined physiological responding, skin conductance, to a standardized presentation of non-personalized combat-related VR events (e.g. encountering enemy fire; explosions) as compared to non-combat classroom VR events in 19 Veterans with and 24 Veterans without combat-related PTSD who had been deployed to Iraq and Afghanistan...
June 23, 2017: Applied Psychophysiology and Biofeedback
https://www.readbyqxmd.com/read/28646372/psychophysiological-and-behavioral-responses-to-a-novel-intruder-threat-task-for-children-on-the-autism-spectrum
#2
Mikle South, Katherine M Taylor, Tiffani Newton, Megan Christensen, Nathan K Jamison, Paul Chamberlain, Oliver Johnston, Michael J Crowley, J Dee Higley
We measured skin conductance response (SCR) to escalating levels of a direct social threat from a novel, ecologically-relevant experimental paradigm, the Intruder Threat Task. We simultaneously evaluated the contribution of social symptom severity and behavioral movement. Children with AS group showed less psychophysiological reactivity to social threat than controls across all three phases of the experiment. In the AS group, greater social impairment was significantly associated with reduced SCR. However, movement activity predicted SCR while diagnosis did not...
June 23, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28645001/a-role-for-visceral-feedback-and-interoception-in-feelings-of-knowing
#3
Chris M Fiacconi, Jane E Kouptsova, Stefan Köhler
Guided by the framework that autonomic feedback shapes emotional experience and other feeling states, we asked whether feeling-of-knowing (FOK) judgments may be influenced by visceral information through interoception. Participants performed a FOK task for previously studied face-name pairs while changes in cardiovascular and facial muscle activity were recorded. Previously studied face cues for which the corresponding name could not be recalled elicited an increased cardiac rate relative to novel face cues...
June 20, 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/28639056/relevance-of-the-clinical-and-psychophysiological-variables-in-the-dyssynergic-defecation-a-comparative-study-in-elderly-subjects
#4
Miguel A Simón, Ana M Bueno
The relevance of several clinical and psychophysiological variables in the dyssynergic defecation in elderly subjects was investigated in this study. To accomplish this, 30 elderly subjects (10 without anorectal disorders, 10 with chronic constipation and 10 with dyssynergic defecation) were repeatedly assessed once per week for 4 weeks, with the following measures being collected at each session: EMG-activity (µV) of the external anal sphincter (at rest, during squeezing, and during straining to defecate), stool frequency, difficulty defecation level, pain grade during defecation, and satisfaction level after evacuation...
June 21, 2017: Applied Psychophysiology and Biofeedback
https://www.readbyqxmd.com/read/28634109/cannabis-associated-psychosis-neural-substrate-and-clinical-impact
#5
REVIEW
R M Murray, A Englund, A Abi-Dargham, D Lewis, M Di Forti, C Davies, M Sherif, P McGuire, C D'Souza
Prospective epidemiological studies have consistently demonstrated that cannabis use is associated with an increased subsequent risk of both psychotic symptoms and schizophrenia-like psychoses. Early onset of use, daily use of high-potency cannabis, and synthetic cannabinoids carry the greatest risk. The risk-increasing effects are not explained by shared genetic predisposition between schizophrenia and cannabis use. Experimental studies in healthy humans show that cannabis and its active ingredient, delta-9-tetrahydrocannabinol (THC), can produce transient, dose-dependent, psychotic symptoms, as well as an array of psychosis-relevant behavioral, cognitive and psychophysiological effects; the psychotogenic effects can be ameliorated by cannabidiol (CBD)...
June 17, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28633727/prenatal-development-and-parents-lived-experiences-how-early-events-shape-our-psychophysiology-and-relationships
#6
REVIEW
Anna Luise Kirkengen
No abstract text is available yet for this article.
2017: Permanente Journal
https://www.readbyqxmd.com/read/28628767/multi-modal-neuroimaging-of-adolescents-with-non-suicidal-self-injury-amygdala-functional-connectivity
#7
Melinda Westlund Schreiner, Bonnie Klimes-Dougan, Bryon A Mueller, Lynn E Eberly, Kristina M Reigstad, Patricia A Carstedt, Kathleen M Thomas, Ruskin H Hunt, Kelvin O Lim, Kathryn R Cullen
BACKGROUND: Non-suicidal self-injury (NSSI) is a significant mental health problem among adolescents. Research is needed to clarify the neurobiology of NSSI and identify candidate neurobiological targets for interventions. Based on prior research implicating heightened negative affect and amygdala hyperactivity in NSSI, we pursued a systems approach to characterize amygdala functional connectivity networks during rest (resting-state functional connectivity [RSFC)]) and a task (task functional connectivity [TFC]) in adolescents with NSSI...
June 13, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28627034/brief-mindfulness-meditation-group-training-in-aphasia-exploring-attention-language-and-psychophysiological-outcomes
#8
Rebecca Shisler Marshall, Jacqueline Laures-Gore, Kim Love
BACKGROUND: Stroke is currently the leading cause of long-term disability in adults in the United States. There is a need for accessible, low-cost treatments of stroke-related disabilities such as aphasia. AIMS: To explore an intervention for aphasia utilizing mindfulness meditation (MM). This preliminary study examines the feasibility of teaching MM to individuals with aphasia. Since physiological measures have not been collected for those with aphasia, the study was also an exploration of the potential attention, language and physiological changes after MM in adults with aphasia during a brief, daily group training...
June 19, 2017: International Journal of Language & Communication Disorders
https://www.readbyqxmd.com/read/28623467/reducing-anxiety-and-improving-academic-performance-through-a-biofeedback-relaxation-training-program
#9
Aitor Aritzeta, Goretti Soroa, Nekane Balluerka, Alexander Muela, Arantxa Gorostiaga, Jone Aliri
The aim of this study was to analyze the influence of a biofeedback relaxation training program on anxiety and academic performance. The program consisted of five biofeedback sessions coupled with three training activities focused on deep breathing, guided imagery, and muscle relaxation. The participants were second-year psychology undergraduates from the University of the Basque Country (UPV/EHU, northern Spain). The experimental group comprised 152 students (M age  = 19.6, SD = 0.74; 74% women) and the control group 81 students (M age   = 19...
June 16, 2017: Applied Psychophysiology and Biofeedback
https://www.readbyqxmd.com/read/28619292/psychophysiological-response-in-parachute-jumps-the-effect-of-experience-and-type-of-jump
#10
Vicente Javier Clemente-Suárez, José Juan Robles-Pérez, Jesús Fernández-Lucas
We aimed to analyse the effect of experience and type of parachute jump on the psychophysiological responses of jumpers. We analysed blood oxygen saturation, heart rate, blood glucose, lactate and creatinkinase, leg strength, isometric hand strength, cortical arousal, specific fine motor skills, self-confidence and cognition, and somatic and state anxiety, before and after four different parachute jumps: a sport parachute jump, a manual tactical parachute jump, tandem pilots, and tandem passengers. Independently of the parachute jump, the psychophysiological responses of experienced paratroopers were not affected by the jumps, except for an increase in anaerobic metabolism...
June 13, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28617383/-%C3%B0-linical-and-physiological-characteristics-and-therapy-asthenic-disorders-in-adolescents-girls
#11
E Yu Rodionova, L S Chutko, S Yu Surushkina, E A Yakovenko
AIM: To study clinical and psychophysiological characteristics of asthenic disorders in adolescent girls in the aspect of treatment efficacy of cortexin. MATERIAL AND METHODS: Seventy-five women, aged 14-17 years, who were diagnosed with neurasthenia (ICD-10 F.48.0), were examined. Conventional neurological examination, a 10-point Visual Analogue Scale, the Multidimensional Fatigue Inventory (MFI-20), the A.M. Vein questionnaire, the Spielberger-Khanin questionnaire and EEG were used...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28617140/introduction-to-the-special-section-linking-the-mmpi-2-rf-to-contemporary-models-of-psychopathology
#12
Martin Sellbom, Paul A Arbisi
This special section considers 9 independent articles that seek to link the Minnesota Multiphasic Personality Inventory-2-Restructured Form (MMPI-2-RF; Ben-Porath & Tellegen, 2008/ 2011 ) to contemporary models of psychopathology. Sellbom ( this issue ) maps the Specific Problems scales onto hierarchical psychopathology structures, whereas Romero, Toorabally, Burchett, Tarescavage, and Glassmire ( this issue ) and Shkalim, Almagor, and Ben-Porath ( this issue ) show evidence of linking the instruments' scales to diagnostic representations of common higher order psychopathology constructs...
July 2017: Journal of Personality Assessment
https://www.readbyqxmd.com/read/28614704/electrodermal-responses-during-appetitive-conditioning-are-sensitive-to-contingency-instruction-ambiguity
#13
Karolien van den Akker, Chantal Nederkoorn, Anita Jansen
Studies on human appetitive conditioning using food rewards can benefit from including psychophysiological outcome measures. The present study tested whether the skin conductance response can function as a measure of differential responding in an appetitive conditioning paradigm including an acquisition and extinction phase, and examined which time window during a trial is most sensitive to conditioning effects. As a secondary aim, the effects of ambiguous vs. non-ambiguous contingency instructions on conditioned responses (skin conductance responses, US expectancies, chocolate desires, and CS evaluations) were assessed...
June 11, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28606245/prefrontal-brain-responsiveness-to-negative-stimuli-distinguishes-familial-risk-for-major-depression-from-acute-disorder
#14
Nils Opel, Ronny Redlich, Dominik Grotegerd, Katharina Dohm, Dario Zaremba, Susanne Meinert, Christian Bürger, Leonie Plümpe, Judith Alferink, Walter Heindel, Harald Kugel, Peter Zwanzger, Volker Arolt, Udo Dannlowski
BACKGROUND: Identifying reliable trait markers of familial risk for major depressive disorder (MDD) is a challenge in translational psychiatric research. In individuals with acute MDD, dysfunctional connectivity patterns of prefrontal areas have been shown repeatedly. However, it has been unclear in which neuronal networks functional alterations in individuals at familial risk for MDD might be present and to what extent they resemble findings previously reported in those with acute MDD...
June 12, 2017: Journal of Psychiatry & Neuroscience: JPN
https://www.readbyqxmd.com/read/28600152/computational-reproducibility-of-goal-relevance-and-goal-conduciveness-appraisals-lead-to-differential-autonomic-reactivity-in-emotional-responding-to-performance-feedback-kreibig-gendolla-scherer-2012-a-guide-and-new-evidence
#15
Sylvia D Kreibig
The emerging field of the psychophysiology of motivation bears many new findings, but little replication. Using my own data (Kreibig, Gendolla, & Scherer, 2012), I test the reproducibility of this specific study, provide the necessary materials to make the study reproducible, and instantiate proper reproducibility practices that other researchers can use as a road map toward the same goal. In addition, based on re-analyses of the original data, I report new evidence for the motivational effects of emotional responding to performance feedback...
June 6, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28599388/assessment-of-stress-levels-in-girls-with-central-precocious-puberty-before-and-during-long-acting-gonadotropin-releasing-hormone-agonist-treatment-a-pilot-study
#16
Tais A S Menk, Marlene Inácio, Delanie B Macedo, Danielle S Bessa, Ana C Latronico, Berenice B Mendonca, Vinicius Nahime Brito
BACKGROUND: The objective of the study was to determine the stress levels of girls with central precocious puberty (CPP) before and during treatment with a long-acting gonadotropin-releasing hormone agonist (GnRHa). METHODS: The Child Stress Scale (CSS) was used for 10 unrelated girls with CPP before and after the first year of GnRHa treatment. The CSS is divided into four subscales (physical, psychological, psychological with depressive component and psychophysiological reactions)...
May 23, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28599192/psychophysiological-and-self-reported-reactivity-associated-with-social-anxiety-and-public-speaking-fear-symptoms-effects-of-fear-versus-distress
#17
Georgia Panayiotou, Maria Karekla, Dora Georgiou, Elena Constantinou, Michaela Paraskeva-Siamata
This study examines psychophysiological and subjective reactivity to anxiety-provoking situations in relation to social anxiety and public speaking fear. We hypothesized that social anxiety symptoms would be associated with similar reactivity across types of imaginary anxiety scenes and not specifically to social anxiety-related scenes. This would be attributed to co-existing depression symptoms. Public speaking fear was expected to be associated with more circumscribed reactivity to survival-threat scenes, due to its association with fearfulness...
June 1, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28595089/dexamethasone-facilitates-fear-extinction-and-safety-discrimination-in-ptsd-a-placebo-controlled-double-blind-study
#18
Vasiliki Michopoulos, Seth D Norrholm, Jennifer S Stevens, Ebony M Glover, Barbara O Rothbaum, Charles F Gillespie, Ann C Schwartz, Kerry J Ressler, Tanja Jovanovic
Psychophysiological hallmarks of posttraumatic stress disorder (PTSD) include exaggerated fear responses, impaired inhibition and extinction of conditioned fear, and decreased discrimination between safety and fear cues. This increased fear load associated with PTSD can be a barrier to effective therapy thus indicating the need for new treatments to reduce fear expression in people with PTSD. One potential biological target for reducing fear expression in PTSD is the hypothalamic-pituitary-adrenal (HPA) axis, which is dysregulated in PTSD...
May 31, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28589965/generalization-of-extinguished-fear-to-untreated-fear-stimuli-after-exposure
#19
Friederike Preusser, Jürgen Margraf, Armin Zlomuzica
Exposure therapy is highly effective in treating excessive fear related to specific objects and/or situations. However, patients with anxiety disorders often display a generalization of fear responses towards conceptually and perceptually related stimuli and situations. It is unclear whether the beneficial effects of exposure on fear reduction towards treated fear stimuli can extend to untreated fear stimuli. Here, we investigated whether basic principles of extinction generalization apply to exposure. Spider-phobic participants were randomly assigned to either two sessions of exposure treatment (n=23) with spiders or no-treatment (n=24)...
June 7, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28581303/interplay-between-children-s-biobehavioral-plasticity-and-interparental-relationship-in-the-origins-of-internalizing-problems
#20
Rebecca L Brock, Grazyna Kochanska, Lea J Boldt
The present study demonstrates the interplay between interparental relationship satisfaction and child plasticity in the origins of internalizing problems in 99 community mothers, fathers, and children. Our cumulative measure of plasticity integrated genetics (5-HTTLPR polymorphism), psychophysiology (skin conductance level), and observed behavior (inhibition, sadness, joy). The interaction between plasticity and interparental relationship satisfaction reflected differential susceptibility. Compared with low-plasticity peers, high-plasticity children had more internalizing problems from 5...
June 5, 2017: Journal of Family Psychology: JFP
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