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https://www.readbyqxmd.com/read/28928683/selfie-takers-prefer-left-cheeks-converging-evidence-from-the-extended-selfiecity-database
#1
Lev Manovich, Vera Ferrari, Nicola Bruno
According to previous reports, selfie takers in widely different cultural contexts prefer poses showing the left cheek more than the right cheek. This posing bias may be interpreted as evidence for a right-hemispheric specialization for the expression of facial emotions. However, earlier studies analyzed selfie poses as categorized by human raters, which raises methodological issues in relation to the distinction between frontal and three-quarter poses. Here, we provide converging evidence by analyzing the (extended) selfiecity database which includes automatic assessments of head rotation and of emotional expression...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28891388/men-respond-too-the-effects-of-a-social-evaluative-body-image-threat-on-shame-and-cortisol-in-university-men
#2
Larkin Lamarche, Brianne Ozimok, Kimberley L Gammage, Cameron Muir
Framed within social self-preservation theory, the present study investigated men's psychobiological responses to social-evaluative body image threats. University men ( n = 66) were randomly assigned to either a high or low social-evaluative body image threat condition. Participants provided saliva samples (to assess cortisol) and completed measures of state body shame prior to and following their condition, during which anthropometric and strength measures were assessed. Baseline corrected values indicated men in the high social-evaluative body image threat condition had higher body shame and cortisol than men in the low social-evaluative body image threat condition...
September 1, 2017: American Journal of Men's Health
https://www.readbyqxmd.com/read/28875432/a-meta-analytic-review-of-the-association-between-cortisol-reactivity-in-response-to-a-stressor-and-attention-deficit-hyperactivity-disorder
#3
Jaclyn M Kamradt, Allison M Momany, Molly A Nikolas
A substantial literature suggests that abnormal cortisol reactivity may be a vulnerability for deleterious mental health outcomes, including ADHD. ADHD has been linked with difficulty in emotion regulation and increased risk of experiencing stressors, both of which may be related to psychobiological abnormalities (e.g., abnormal cortisol reactivity). Research has been mixed regarding the association between cortisol reactivity and ADHD. Therefore, the present meta-analytic review (k = 12) sought to quantify this association and review the relevant methodological issues and theoretical implications of this area of research...
September 5, 2017: Attention Deficit and Hyperactivity Disorders
https://www.readbyqxmd.com/read/28866901/anxiety-and-psychosomatic-symptoms-in-palliative-care-from-neuro-psychobiological-response-to-stress-to-symptoms-management-with-clinical-hypnosis-and-meditative-states
#4
Anirudh Kumar Satsangi, Maria Paola Brugnoli
Psychosomatic disorder is a condition in which psychological stresses adversely affect physiological (somatic) functioning to the point of distress. It is a condition of dysfunction or structural damage in physical organs through inappropriate activation of the involuntary nervous system and the biochemical response. In this framework, this review will consider anxiety disorders, from the perspective of the psychobiological mechanisms of vulnerability to extreme stress in severe chronic illnesses. Psychosomatic medicine is a field of behavioral medicine and a part of the practice of consultation-liaison psychiatry...
August 9, 2017: Annals of Palliative Medicine
https://www.readbyqxmd.com/read/28846584/effects-of-preoperative-psychological-interventions-on-catecholamine-and-cortisol-levels-after-surgery-in-coronary-artery-bypass-graft-patients-the-randomized-controlled-psy-heart-trial
#5
Stefan Salzmann, Frank Euteneuer, Johannes A C Laferton, Charlotte J Auer, Meike C Shedden-Mora, Manfred Schedlowski, Rainer Moosdorf, Winfried Rief
OBJECTIVE: The aim of the study was to examine whether preoperative psychological interventions targeting patients' expectations are capable of influencing the biological stress response after coronary artery bypass graft (CABG) surgery and could thus improve recovery after heart surgery. METHODS: Randomized controlled trial with assessments 10 days before surgery, after psychological intervention (day of hospital admission, but before surgery), postoperative (6-8 days later), and at follow-up (6 months after surgery)...
September 2017: Psychosomatic Medicine
https://www.readbyqxmd.com/read/28836919/dopaminergic-and-serotonergic-genotypes-and-the-subjective-experiences-of-hypnosis
#6
E R Katonai, Anna Szekely, A Vereczkei, Maria Sasvari-Szekely, Éva I Bányai, Katalin Varga
Hypnotizability is related to the Val(158)Met polymorphism of the COMT gene. The authors' aim was to find associations between candidate genes and subjective dimensions of hypnosis; 136 subjects participated in hypnosis and noninvasive DNA sampling. The phenomenological dimensions were tapped by the Archaic Involvement Measure (AIM), the Phenomenology of Consciousness Inventory (PCI), and the Dyadic Interactional Harmony Questionnaire (DIH). The main results were that the "Need of dependence" subscale of AIM was associated with the COMT genotypes...
October 2017: International Journal of Clinical and Experimental Hypnosis
https://www.readbyqxmd.com/read/28813315/using-experimental-methodologies-to-assess-posttraumatic-stress
#7
REVIEW
Tanja Jovanovic, Sheila Am Rauch, Alex O Rothbaum, Barbara O Rothbaum
The assessment of PTSD is hindered by the absence of an objective biological measure. There is no blood test or stress test or similar objective measurement that reliably indicates the presence or absence of PTSD. In this article we focus on experimental assessments of PTSD. The focus will be on psychobiological indices that have been shown to be dysregulated in PTSD sufferers and that are responsive to treatment for PTSD. This includes psychophysiological startle, cortisol, and related assessments that will be covered succinctly below...
April 2017: Current Opinion in Psychology
https://www.readbyqxmd.com/read/28813308/pharmacological-management-of-posttraumatic-stress-disorder
#8
REVIEW
Nancy C Bernardy, Matthew J Friedman
Posttraumatic stress disorder (PTSD) has been conceptualized as an inability to cope with overwhelming stress that is followed by a distinctive pattern of symptoms. This concept has made it possible to develop therapeutic approaches for PTSD that include medication and psychotherapy options. In this article we summarize research studies on pharmacotherapies for PTSD and review new findings in the neurobiology of PTSD that are promoting the development of targeted treatment options. Research findings that have improved our understanding of psychobiological abnormalities associated with PTSD offer clinicians improved treatment strategies...
April 2017: Current Opinion in Psychology
https://www.readbyqxmd.com/read/28728007/direct-immune-detection-of-cortisol-by-chemiresistor-graphene-oxide-sensor
#9
Yo-Han Kim, Kyungmin Lee, Hunsang Jung, Hee Kyung Kang, Jihoon Jo, In-Kyu Park, Hyun Ho Lee
In this study, a biosensor to detect a stress biomarker of cortisol using cortisol monoclonal antibody (c-Mab) covalently immobilized on reduced graphene oxide (rGO) channel as electrical sensing element was demonstrated. Highly specific immune-recognition between the c-Mab and the cortisol was identified and characterized on a basis of resistance change at the rGO channel based chemiresistor sensor achieving the limit of detection of 10pg/mL (27.6 pM). In addition, cortisol concentrations of real human salivary sample and buffer solution of rat adrenal gland acute slices, which could secret the cortisol induced by adrenocorticotropic hormone (ACTH), were directly measured by the chemiresistor corresponding to the specific sensing of the cortisol...
July 11, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28699486/stress-depression-resilience-and-ageing-a-role-for-the-lpa-lpa1-pathway
#10
Román D Moreno-Fernández, Sara Tabbai, Estela Castilla-Ortega, Margarita Pérez-Martín, Guillermo Estivill-Torrús, Fernando Rodríguez de Fonseca, Luis J Santín, Carmen Pedraza
BACKGROUND: Chronic stress affects health and the quality of life, with its effects being particularly relevant in ageing due to the psychobiological characteristics of this population. However, while some people develop psychiatric disorders, especially depression, others seem very capable of dealing with adversity. There is no doubt that along with the identification of neurobiological mechanisms involved in developing depression, discovering which factors are involved in positive adaptation under circumstances of extreme difficulty will be crucial for promoting resilience...
July 10, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28690872/physiological-and-lipid-profile-response-to-acute-exercise-at-different-intensities-in-individuals-with-spinal-cord-injury
#11
Eduardo S Alves, Ronaldo Vt Santos, Francieli S Ruiz, Fabio S Lira, Alexandre A Almeida, Giscard Lima, Thatiana Cs Goni, Lila Oyama, Kate M Edwards, Sergio Tufik, Marco Túlio De Mello
STUDY DESIGN: Experimental and cross-sectional study. OBJECTIVE: To assess the immediate effect of exercise on heart rate (HR), oxygen uptake (VO2), pulmonary ventilation (PV), oxygen pulse (OP), glucose and lipids of wheelchair basketball players with spinal cord injury (SCI). SETTING: Center of Studies in Psychobiology and Exercise-São Paulo, Brazil. METHODS: In all, nine wheelchair basketball players with SCI and nine able-bodied controls (C) performed three exercise sessions at different intensities: ventilatory threshold 1 (VT1), 15% below VT1 and 15% above VT1 with a duration of ~24-34 min...
2017: Spinal Cord Series and Cases
https://www.readbyqxmd.com/read/28682230/-genetics-and-epigenetics-of-suicidal-behaviors
#12
Emilie Olié, Philippe Courtet
With more than 10 000 deaths each year in France, suicide is a major public health problem. Despite many known risk factors, suicide prediction remains extremely difficult in daily clinical practice. The identification of biomarkers, including genetic and epigenetic factors, is needed in suicidology in order to better understand pathophysiology of such behaviors and to improve the screening of individuals at high suicidal risk. Numerous studies have reported candidate genes involved in serotonergic system, HPA axis and neurotrophic system...
2017: Biologie Aujourd'hui
https://www.readbyqxmd.com/read/28681106/proactive-and-reactive-aggression-subgroups-in-typically-developing-children-the-role-of-executive-functioning-psychophysiology-and-psychopathy
#13
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/28661257/recreational-3-4-methylenedioxymethamphetamine-or-ecstasy-current-perspective-and-future-research-prospects
#14
Andrew C Parrott, Luke A Downey, Carl A Roberts, Cathy Montgomery, Raimondo Bruno, Helen C Fox
AIMS: The purpose of this article is to debate current understandings about the psychobiological effects of recreational 3,4-methylenedioxymethamphetamine (MDMA or 'ecstasy'), and recommend theoretically-driven topics for future research. METHODS: Recent empirical findings, especially those from novel topic areas were reviewed. Potential causes for the high variance often found in group findings were also examined. RESULTS AND CONCLUSIONS: The first empirical reports into psychobiological and psychiatric aspects from the early 1990s concluded that regular users demonstrated some selective psychobiological deficits, for instance worse declarative memory, or heightened depression...
June 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28604231/the-psychometrics-of-the-european-portuguese-version-of-the-temperament-and-character-inventory-revised
#15
Paulo A S Moreira, Claude Robert Cloninger, Maria José Rocha, João Tiago Oliveira, Noémia Ferreira, Daniel Maffasioli Gonçalves, Sándor Rózsa
Cloninger's psychobiological model of personality integrates contributions from behavioral genetics, neurobiology, and psychology in the description of the human personality. The temperament and character inventory (TCI) is its assessment instrument. The Brazilian Portuguese version of the TCI has shown good psychometric properties. However, Portuguese spoken in Brazil presents marked and substantial differences to that spoken in Portugal, and no study has yet described the psychometrics of the European Portuguese version...
January 1, 2017: Psychological Reports
https://www.readbyqxmd.com/read/28595479/psychobiology-of-cumulative-trauma-hair-cortisol-as-a-risk-marker-for-stress-exposure-in-women
#16
Matthew C Morris, James L Abelson, Alyssa S Mielock, Uma Rao
Childhood trauma (CT) is associated with long-lasting alterations of the hypothalamic-pituitary-adrenal (HPA) axis and elevated risk for stress exposure in adulthood. Although HPA alterations are present in the early aftermath of trauma, it remains unclear how initial HPA activity is associated with subsequent stress exposure and whether CT exposure influences the strength and direction of this association. The present study examined prospective associations between hair cortisol content (HCC) and stress exposure from baseline to 3-month follow-up in young adult women with recent (i...
July 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28557820/features-of-resting-state-eeg-theta-coherence-in-somatic-symptom-disorder-compared-to-major-depressive-disorder-a-pilot-study
#17
Jaeyoung Ahn, Doug Hyun Han, Ji Sun Hong, Kyoung Joon Min, Young Sik Lee, Bong-Jin Hahm, Sun Mi Kim
OBJECTIVE: Somatic symptom disorder (SSD) often co-occurs with major depressive disorder (MDD). Both conditions share common psychobiological and biobehavioral characteristics, but little is known about differential patterns in brain function. In this study, we compared resting-state functional brain connectivity between SSD and MDD using quantitative electroencephalography (QEEG). METHODS: Fifteen patients with SSD (SSD group), 15 patients with MDD (MDD group), and 15 healthy volunteers (HC group) participated in this study...
May 27, 2017: Psychosomatic Medicine
https://www.readbyqxmd.com/read/28557129/recreational-stimulants-herbal-and-spice-cannabis-the-core-psychobiological-processes-that-underlie-their-damaging-effects
#18
Andrew C Parrott, Amie C Hayley, Luke A Downey
AIMS: Recreational drugs are taken for their positive mood effects, yet their regular usage damages well-being. The psychobiological mechanisms underlying these damaging effects will be debated. METHODS: The empirical literature on recreational cannabinoids and stimulant drugs is reviewed. A theoretical explanation for how they cause similar types of damage is outlined. RESULTS: All psychoactive drugs cause moods and psychological states to fluctuate...
May 30, 2017: Human Psychopharmacology
https://www.readbyqxmd.com/read/28551941/-the-placebo-effect-neurobiological-aspects
#19
REVIEW
Asael Lubotzky, Adi Aran
Any medical treatment, whether it be medication, behavioral therapy or medical procedure, can affect the patient in a very complex way. Each of these forms of medical treatment have both psychobiological and physiological effects on the patient, with interactions between those levels. When considering the specific efficacy of a new treatment, there is therefore a need to neutralize the psychobiological effect by comparing the effect of the treatment to the effect of a placebo - a treatment involving similar characteristics which does not produce that physiological effect...
March 2017: Harefuah
https://www.readbyqxmd.com/read/28544861/social-buffering-of-stress-in-development-a-career-perspective
#20
Megan R Gunnar
This review provides a broad overview of my research group's work on social buffering in human development in the context of the field. Much of the focus is on social buffering of the hypothalamic-pituitary-adrenocortical (HPA) system, one of the two major arms of the mammalian stress system. This focus reflects the centrality of the HPA system in research on social buffering in the fields of developmental psychobiology and developmental science. However, buffering of the cardiovascular and autonomic nervous system is also discussed...
May 2017: Perspectives on Psychological Science: a Journal of the Association for Psychological Science
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