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Psychophysiology

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https://www.readbyqxmd.com/read/27914174/mathematical-detection-of-aortic-valve-opening-b-point-in-impedance-cardiography-a-comparison-of-three-popular-algorithms
#1
Javier Rodríguez Árbol, Pandelis Perakakis, Alba Garrido, José Luis Mata, M Carmen Fernández-Santaella, Jaime Vila
The preejection period (PEP) is an index of left ventricle contractility widely used in psychophysiological research. Its computation requires detecting the moment when the aortic valve opens, which coincides with the B point in the first derivative of impedance cardiogram (ICG). Although this operation has been traditionally made via visual inspection, several algorithms based on derivative calculations have been developed to enable an automatic performance of the task. However, despite their popularity, data about their empirical validation are not always available...
December 3, 2016: Psychophysiology
https://www.readbyqxmd.com/read/27914166/trauma-related-dissociation-psychological-features-and-psychophysiological-responses-to-script-driven-imagery-in-borderline-personality-disorder
#2
Dana Bichescu-Burian, Jürgen Steyer, Tilman Steinert, Benjamin Grieb, Stefan Tschöke
Defense reactions to threatening situations are vital adaptations to stress that protect organisms from injury and ensure survival. We retrospectively investigated the role of peritraumatic dissociation (PD) in the occurrence of severe psychopathology and dissociative patterns of reactions in borderline personality disorder (BPD). We recruited 28 patients with a clinical diagnosis of BPD and 15 healthy controls. The BPD group was divided according to the level of PD (low vs. high): BPD and PD (n = 15) and BPD only (n = 13)...
December 3, 2016: Psychophysiology
https://www.readbyqxmd.com/read/27887893/emotion-modulation-of-the-startle-reflex-in-essential-tremor-blunted-reactivity-to-unpleasant-and-pleasant-pictures
#3
Jacob A Lafo, Ania Mikos, Paul C Mangal, Bonnie M Scott, Erin Trifilio, Michael S Okun, Dawn Bowers
BACKGROUND: Essential tremor is a highly prevalent movement disorder characterized by kinetic tremor and mild cognitive-executive changes. These features are commonly attributed to abnormal cerebellar changes, resulting in disruption of cerebellar-thalamo-cortical networks. Less attention has been paid to alterations in basic emotion processing in essential tremor, despite known cerebellar-limbic interconnectivity. OBJECTIVES: In the current study, we tested the hypothesis that a psychophysiologic index of emotional reactivity, the emotion modulated startle reflex, would be muted in individuals with essential tremor relative to controls...
November 17, 2016: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/27883317/somatoform-disorders-a-pediatric-experience
#4
Nada Pop-Jordanova, Tatjana Zorcec
Somatization in children consists of the persistent experience and complaints of somatic distress that cannot be fully explained by a medical diagnosis. Working at the Psychophysiological Department at the University Clinic we are dealing with more than 100 children per year manifesting this kind of disorders. The aim of this article is to summarize some specific characteristics of the somatoform disorder in a group of 243 children, mean age 10.31 (± 2.75) years for both genders, selected randomly. The used psychometric instruments are: CBCL, EPQ for children, and MMPI-201 for mothers...
November 1, 2016: Prilozi (Makedonska Akademija Na Naukite i Umetnostite. Oddelenie za Medicinski Nauki)
https://www.readbyqxmd.com/read/27874995/changes-in-self-efficacy-collective-efficacy-and-patient-outcome-following-interprofessional-simulation-training-on-postpartum-haemorrhage
#5
Signe Egenberg, Pål Øian, Torbjørn Moe Eggebø, Mirjana Grujic Arsenovic, Lars Edvin Bru
AIMS AND OBJECTIVES: To examine whether interprofessional simulation training on management of postpartum haemorrhage enhances self-efficacy and collective efficacy and reduces the blood transfusion rate after birth. BACKGROUND: Postpartum haemorrhage is a leading cause of maternal morbidity and mortality worldwide, although it is preventable in most cases. Interprofessional simulation training might help improve the competence of health professionals dealing with postpartum haemorrhage, and more information is needed to determine its potential...
November 22, 2016: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/27874837/effectiveness-of-spiritist-passe-spiritual-healing-on-the-psychophysiological-parameters-in-hospitalized-patients
#6
Élida Mara Carneiro, Giselle Vanessa Moraes, Guilherme Azevedo Terra
Context • The coexistence of affective disorders, especially anxiety and depression, with medical illness is a topic of considerable clinical and research interest. Complementary biofield modalities are therapies that involve touch or placement of the hands in or through biofields. Spiritual healing, or Spiritist passe (SP), is a kind of laying on of hands (LOH), and therefore is a biofield therapy. Objective • The current study intended to evaluate the effects of SP on psychological parameters such as anxiety and depression and on the perceptions of muscle tension and wellness as well as physiological parameters, such as pain intensity, heart rate (HR), and oxygen saturation (SpO2)...
July 2016: Advances in Mind-body Medicine
https://www.readbyqxmd.com/read/27873125/abstracts-of-papers-presented-at-the-47th-annual-meeting-of-the-association-for-applied-psychophysiology-and-biofeedback
#7
(no author information available yet)
No abstract text is available yet for this article.
November 21, 2016: Applied Psychophysiology and Biofeedback
https://www.readbyqxmd.com/read/27870943/longitudinal-monitoring-of-heartbeat-dynamics-predicts-mood-changes-in-bipolar-patients-a-pilot-study
#8
Claudio Gentili, Gaetano Valenza, Mimma Nardelli, Antonio Lanatà, Gilles Bertschy, Luisa Weiner, Mauro Mauri, Enzo Pasquale Scilingo, Pietro Pietrini
OBJECTIVES: Recent research indicates that Heart Rate Variability (HRV) is affected in Bipolar Disorders (BD) patients. To determine whether such alterations are a mere expression of the current mood state or rather contain longitudinal information on BD course, we examined the potential influence of states adjacent in time upon HRV features measured in a target mood state. METHODS: Longitudinal evaluation of HRV was obtained in eight BD patients by using a wearable monitoring system developed within the PSYCHE project...
November 12, 2016: Journal of Affective Disorders
https://www.readbyqxmd.com/read/27869460/correction-to-tsypes-et-al-2016
#9
(no author information available yet)
Reports an error in "Neural Responses to Gains and Losses in Children of Suicide Attempters" by Aliona Tsypes, Max Owens, Greg Hajcak and Brandon E. Gibb (Journal of Abnormal Psychology, Advanced Online Publication, Nov 3, 2016, np). In the original article, Figure 1 had incorrect axis labels. There was also an error in the abstract, which did not state that ΔFN was calculated as FN to losses minus FN to gains. All versions of this article have been corrected. (The following abstract of the original article appeared in record 2016-53087-001...
November 21, 2016: Journal of Abnormal Psychology
https://www.readbyqxmd.com/read/27868423/startle-potentiation-to-uncertain-threat-as-a-psychophysiological-indicator-of-fear-based-psychopathology-an-examination-across-multiple-internalizing-disorders
#10
Stephanie M Gorka, Lynne Lieberman, Stewart A Shankman, K Luan Phan
Heightened reactivity to uncertain threat (U-threat) is an important individual difference factor that may characterize fear-based internalizing psychopathologies (IPs) and distinguish them from distress/misery IPs. To date, however, the majority of existing research examining reactivity to U-threat has been within individuals with panic disorder and major depressive disorder (MDD) and no prior study has directly tested this hypothesis across multiple IPs. The current study therefore explored whether heightened reactivity to U-threat is a psychophysiological indicator of fear-based psychopathology across 5 groups: current (a) social anxiety disorder (SAD); (b) specific phobia (SP); (c) generalized anxiety disorder (GAD); (d) MDD; and (c) individuals with no history of psychopathology (controls)...
November 17, 2016: Journal of Abnormal Psychology
https://www.readbyqxmd.com/read/27867415/prior-acute-mental-exertion-in-exercise-and-sport
#11
REVIEW
Fernando Lopes E Silva-Júnior, Patrick Emanuel, Jordan Sousa, Matheus Silva, Silmar Teixeira, Flávio Pires, Sérgio Machado, Oscar Arias-Carrion
INTRODUCTION: Mental exertion is a psychophysiological state caused by sustained and prolonged cognitive activity. The understanding of the possible effects of acute mental exertion on physical performance, and their physiological and psychological responses are of great importance for the performance of different occupations, such as military, construction workers, athletes (professional or recreational) or simply practicing regular exercise, since these occupations often combine physical and mental tasks while performing their activities...
2016: Clinical Practice and Epidemiology in Mental Health: CP & EMH
https://www.readbyqxmd.com/read/27866932/oxytocin-attenuates-aversive-response-to-nicotine-and-anxiety-like-behavior-in-adolescent-rats
#12
Hyunchan Lee, Minji Jang, Jihyun Noh
Initial tobacco use is initiated with rewarding and aversive properties of nicotine and aversive response to nicotine plays a critical role in nicotine dependency. Decrease of nicotine aversion increases the nicotine use that causes behavioral and neuronal changes of animals. Oxytocin influences drug abuse and reciprocally affect vulnerability to drug use. To assess the effect of oxytocin on initial nicotine aversion and anxiety, we examined voluntary oral nicotine intake and anxiety-like behavior following oxytocin treatment in adolescent rats...
November 17, 2016: Neuroscience Research
https://www.readbyqxmd.com/read/27866012/differential-activation-of-the-frontal-pole-to-high-vs-low-calorie-foods-the-neural-basis-of-food-preference-in-anorexia-nervosa
#13
Jessica C Scaife, Lauren R Godier, Andrea Reinecke, Catherine J Harmer, Rebecca J Park
Neuroimaging studies in anorexia nervosa (AN) suggest that altered food reward processing may result from dysfunction in both limbic reward and cortical control centers of the brain. This fMRI study aimed to index the neural correlates of food reward in a subsample of individuals with restrictive AN: twelve currently ill, fourteen recovered individuals and sixteen healthy controls. Participants were shown pictures of high and low-calorie foods and asked to evaluate how much they wanted to eat each one following a four hour fast...
December 30, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/27846774/insomnia-in-female-nurses-a-nationwide-retrospective-study
#14
Kasumi Tsai, Tzu-Yin Lee, Min-Huey Chung
OBJECTIVE: This study explored the incidence of insomnia in female nursing staff and compared the incidence with that in other medical and nonmedical female workers. METHODS: This retrospective study analyzed female nurses with insomnia using data from January 1, 2004 to December 31, 2008. The incidence of insomnia in other female medical workers and nonmedical female workers was also analyzed and compared with that of the nurses. Using the Taiwan National Health Insurance Research Database, each study patient was identified by ID number...
November 16, 2016: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/27816081/imagery-in-therapy-an-information-processing-analysis-of-fear-republished-article
#15
Peter J Lang
An analysis of fear imagery in behavior therapy is developed from the combined perspectives of information processing theory and psychophysiology. Recent thought on imagery processing and storage is considered, and it is argued that affective images are best viewed as propositional structures rather than as iconic or holistic sensory representations. A method is presented for manipulating the image through instructions, and an image taxonomy of stimulus and response components is described. The usefulness of bioelectric measurement is emphasized throughout, and this is illustrated in an experiment derived from the "constructive" concept of imagery...
September 2016: Behavior Therapy
https://www.readbyqxmd.com/read/27811193/the-psychophysiological-mechanisms-of-alexithymia-in-autism-spectrum-disorder
#16
Sebastian B Gaigg, Anna Sf Cornell, Geoffrey Bird
Accumulating evidence indicates that co-occurring alexithymia underlies several facets of the social-emotional difficulties common in individuals with autism spectrum disorder. The mechanisms involved, however, remain poorly understood because measuring alexithymia relies heavily on self-report. To address this issue, carefully matched groups of individuals with autism spectrum disorder and comparison participants rated 70 emotion-inducing pictures on subjectively experienced arousal while skin conductance responses were monitored objectively...
November 2, 2016: Autism: the International Journal of Research and Practice
https://www.readbyqxmd.com/read/27808540/neural-responses-to-gains-and-losses-in-children-of-suicide-attempters
#17
Aliona Tsypes, Max Owens, Greg Hajcak, Brandon E Gibb
[Correction Notice: An Erratum for this article was reported online in Journal of Abnormal Psychology on Nov 21 2016 (see record 2016-56318-001). In the original article, Figure 1 had incorrect axis labels. There was also an error in the abstract, which did not state that ΔFN was calculated as FN to losses minus FN to gains. All versions of this article have been corrected.] Suicidal behavior aggregates within families, yet the specific mechanisms of suicide-risk transmission are poorly understood. Despite some evidence that abnormal patterns of reward responsiveness might constitute one such potential mechanism, empirical evidence is lacking...
November 3, 2016: Journal of Abnormal Psychology
https://www.readbyqxmd.com/read/27808532/before-the-boom-readings-and-uses-of-vygotsky-in-argentina-1935-1974
#18
Luciano Nicolás García
This article analyzes, from the standpoint of reception studies and transnational history, the different ways Lev S. Vygotsky's published work in Spanish, English, and Russian was read, discussed, and used in Argentina from 1935 to 1974. This "early" reception primarily involved 2 groups: writers affiliated with the Argentine Communist Party, and individuals without political affiliations who engaged in discussion with Communists. The article argues that Communism, as a cultural tradition and political organization, played a key role in the reception and diffusion of Vygotsky's work...
November 2016: History of Psychology
https://www.readbyqxmd.com/read/27806925/effects-of-intranasal-oxytocin-on-emotion-regulation-in-insecure-adolescents-study-protocol-for-a-double-blind-randomized-controlled-trial
#19
Monika Szymanska, Carmela Chateau Smith, Julie Monnin, Patrice Andrieu, Frédérique Girard, Lucie Galdon, Marie Schneider, Lionel Pazart, Sylvie Nezelof, Lauriane Vulliez-Coady
BACKGROUND: Emotional dysregulation and impaired attachment are potential contributors to the development of psychopathology in adolescence. This raises the question of whether oxytocin (OT), the paradigmatic "attachment hormone," may be beneficial in such contexts. Recent evidence suggests that intranasal administration of OT increases affiliative behavior, including trust and empathy. OT may also facilitate social reciprocity by attenuating the stress response to interpersonal conflict...
November 2, 2016: JMIR Research Protocols
https://www.readbyqxmd.com/read/27785847/default-mode-network-deactivation-during-odor-visual-association
#20
Prasanna R Karunanayaka, Donald A Wilson, Michael J Tobia, Brittany E Martinez, Mark D Meadowcroft, Paul J Eslinger, Qing X Yang
Default mode network (DMN) deactivation has been shown to be functionally relevant for goal-directed cognition. In this study, the DMN's role during olfactory processing was investigated using two complementary functional magnetic resonance imaging (fMRI) paradigms with identical timing, visual-cue stimulation, and response monitoring protocols. Twenty-nine healthy, non-smoking, right-handed adults (mean age = 26 ± 4 years, 16 females) completed an odor-visual association fMRI paradigm that had two alternating odor + visual and visual-only trial conditions...
October 27, 2016: Human Brain Mapping
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