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Biological Psychology

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https://www.readbyqxmd.com/read/28511783/is-elaboration-of-affective-content-sufficient-to-attenuate-emotional-responses-during-reappraisal-procedures
#1
Miroslaw Wyczesany, Tomasz S Ligeza
Reappraisal is an emotion regulation strategy which involves changing the interpretation of emotional stimuli. It decreases measures of negative affect together with markers of emotional processing, including late positive potential (LPP). Affective responses can also be attenuated by various cognitive tasks. As reappraisal tasks require cognitive effort to elaborate emotional stimuli, it is possible that the observed reduction of the LPP amplitude during reinterpretation is, at least partly, caused by an unspecific cognitive activity...
May 13, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28501607/the-association-between-high-levels-of-cumulative-life-stress-and-aberrant-resting-state-eeg-dynamics-in-old-age
#2
Amanda C Marshall, Nicholas R Cooper
Cumulative experienced stress produces shortcomings in old adults' cognitive performance. These are reflected in electrophysiological changes tied to task execution. This study explored whether stress-related aberrations in older adults' electroencephalographic (EEG) activity were also apparent in the system at rest. To this effect, the amount of stressful life events experienced by 60 young and 60 elderly participants were assessed in conjunction with resting state power changes in the delta, theta, alpha, and beta frequencies during a resting EEG recording...
May 10, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28499838/brain-responses-to-sound-intensity-changes-dissociate-depressed-participants-and-healthy-controls
#3
Elisa M Ruohonen, Piia Astikainen
Depression is associated with bias in emotional information processing, but less is known about the processing of neutral sensory stimuli. Of particular interest is processing of sound intensity which is suggested to indicate central serotonergic function. We tested weather event-related brain potentials (ERPs) to occasional changes in sound intensity can dissociate first-episode depressed, recurrent depressed and healthy control participants. The first-episode depressed showed larger N1 amplitude to deviant sounds compared to recurrent depression group and control participants...
May 10, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28499836/inhibitory-control-for-emotional-and-neutral-scenes-in-competition-an-eye-tracking-study-in-bipolar-disorder
#4
Ana García-Blanco, Ladislao Salmerón, Manuel Perea
This study examined the inhibitory control of attention to social scenes in manic, depressive, and euthymic episodes of bipolar disorder (BD). Two scenes were simultaneously presented (happy/threatening/neutral [target] versus control). Participants were asked either to look at the emotional pictures (i.e., attend-to-emotional block) or to avoid looking at the emotional pictures (i.e., attend-to-neutral block) while their eye movements were recorded. The initial orienting (latency and percentage of first fixation) and subsequent attentional engagement (gaze duration) were computed...
May 10, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28499839/does-emotion-change-auditory-prediction-and-deviance-detection
#5
Ana P Pinheiro, Carla Barros, Marcelo Dias, Margaret Niznikiewicz
In the last decades, a growing number of studies provided compelling evidence supporting the interplay of cognitive and affective processes. However, it remains to be clarified whether and how an emotional context affects the prediction and detection of change in unattended sensory events. In an event-related potential (ERP) study, we probed the modulatory role of pleasant, unpleasant and neutral visual contexts on the brain response to automatic detection of change in spectral (intensity) vs. temporal (duration) sound features...
May 9, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28499837/information-processing-of-the-rorschach-s-traumatic-content-index-in-trauma-exposed-adults-an-event-related-potential-erp-study
#6
Gil Zukerman, Ester Ben Itzchak, Leah Fostick, Armony Sivan
PTSD elicits hypervigilance to trauma-related stimuli. Our novel research examined event-related potentials from Blood, Anatomy, and Morbid content derived from the Rorschach's Traumatic Content Index (TCI). Participants included: 16 with PTSD, 24 trauma-exposed without PTSD (Non-PTSD), and 16 non-traumatized Controls. P3 oddball paradigms were used with TCI-derived Distractors and neutral Targets/Standards. We predicted larger P3 amplitudes in the context of TCI-related Distractors among trauma-exposed participants...
May 9, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28483633/gastric-modulation-of-startle-eye-blink
#7
André Schulz, Zoé van Dyck, Annika P C Lutz, Silke Rost, Claus Vögele
Previous assessment methods of gastric interoception either rely on self-reports, or imply invasive procedures. We investigated the reliability of startle methodology as a non-invasive alternative for the assessment of afferent gastric signals. Twenty-four participants were tested on three separate days, on which they were requested to ingest water (either 0, 300 or 600ml), after 8h of fasting. On each assessment day, eye blink responses (EMG) to 10 acoustic startle stimuli (105dB) were assessed at 4 measurement points (before, 0, 7, 14min...
May 5, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28479142/role-of-addiction-and-stress-neurobiology-on-food-intake-and-obesity
#8
Rajita Sinha
The US remains at the forefront of a global obesity epidemic with a significant negative impact on public health. While it is well known that a balance between energy intake and expenditure is homeostatically regulated to control weight, growing evidence points to multifactorial social, neurobehavioral and metabolic determinants of food intake that influence obesity risk. This review presents factors such as the ubiquitous presence of rewarding foods in the environment and increased salience of such foods that stimulate brain reward motivation and stress circuits to influence eating behaviors...
May 4, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28478139/neurofunctional-correlates-of-behavioral-inhibition-system-sensitivity-during-attentional-control-are-modulated-by-perceptual-load
#9
Nora Bunford, Julia Roberts, Amy E Kennedy, Heide Klumpp
Although the Behavioral Inhibition System (BIS) is associated with threat-sensitivity, little is known about its neurofunctional correlates during cognitive control over task-irrelevant threat distractors. Thirty non-clinical participants, who ranged in BIS sensitivity, completed an attentional control paradigm during fMRI. The paradigm varied in cognitive demand with low perceptual load comprising identical target letters and high perceptual load comprising a target letter in a mixed letter string; each superimposed on threatening and neutral face distractors...
May 3, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28478138/salutary-effects-of-an-attention-bias-modification-mobile-application-on-biobehavioral-measures-of-stress-and-anxiety-during-pregnancy
#10
Tracy A Dennis-Tiwary, Samantha Denefrio, Shari Gelber
Stress and anxiety during pregnancy are associated with a range of adverse health outcomes, thus there is an unmet need for low-barrier treatments that target stress and anxiety. One such treatment approach, attention bias modification training (ABMT), reduces the anxiety-related attentional threat bias, which is also associated with disrupted neural processing of threat. It remains unclear, however, whether reducing treatment barriers via mobile delivery of ABMT is effective and whether ABMT efficacy varies depending on individual differences in neural processing of threat...
May 3, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28478137/making-your-skin-crawl-the-role-of-tactile-sensitivity-in-disease-avoidance
#11
David Francis Hunt, Grace Cannell, Nicholas A Davenhill, Stephanie A Horsford, Diana S Fleischman, Justin H Park
Mounting evidence indicates that animals, including humans, have evolved a behavioral disease-avoidance system designed to facilitate the detection and avoidance of sources of pathogens, and that this system interacts with physiological defenses. The skin acts as an important anatomical barrier, yet little research has investigated the role of tactile sensitivity in disease avoidance. Increased tactile sensitivity in the presence of potential sources of pathogens may facilitate prophylactic behaviors such as self-grooming...
May 3, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28465046/social-value-orientation-modulates-the-frn-and-p300-in-the-chicken-game
#12
Yiwen Wang, D Michael Kuhlman, Kathryn Roberts, Bo Yuan, Zhen Zhang, Wei Zhang, Robert F Simons
Social dilemmas pervade daily life, business, and politics. The manners in which these dilemmas are resolved depend in part on the personal characteristics of those involved. One such characteristic is Social Value Orientation (SVO), a trait-like predisposition to maximize cooperative (Pro-Social) or non-cooperative (Pro-Self) outcomes in social relationships. The present study investigated the role of SVO in modulating neural responses to outcomes in a type of social dilemma known as the Chicken Game. The Chicken Game models real-world situations involving two parties independently making a decision between cooperation and aggression...
May 2, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28472693/salivary-alpha-amylase-and-noradrenaline-responses-to-corticotropin-releasing-hormone-administration-in-humans
#13
Liubov Petrakova, Karoline Boy, Lisa Mittmann, Lars Möller, Harald Engler, Manfred Schedlowski
Salivary alpha-amylase (sAA) is a digestive enzyme mainly responsible for the hydrolysis of starch and glycogen in the oral cavity. Since the secretion of sAA is largely under the control of the sympathetic nervous system, sAA activity is also considered to be a non-invasive marker of sympathetic activation. However, the direct association between sAA activity and other sympathetic parameters remains questionable. Therefore, we employed the corticotropin-releasing hormone (CRH) stimulation test to pharmacologically activate the sympathetic nervous system and to analyze plasma noradrenaline response together with sAA activity...
May 1, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28465047/orofacial-electromyographic-correlates-of-induced-verbal-rumination
#14
Ladislas Nalborczyk, Marcela Perrone-Bertolotti, Céline Baeyens, Romain Grandchamp, Mircea Polosan, Elsa Spinelli, Ernst H W Koster, Hélène Lœvenbruck
Rumination is predominantly experienced in the form of repetitive verbal thoughts. Verbal rumination is a particular case of inner speech. According to the Motor Simulation view, inner speech is a kind of motor action, recruiting the speech motor system. In this framework, we predicted an increase in speech muscle activity during rumination as compared to rest. We also predicted increased forehead activity, associated with anxiety during rumination. We measured electromyographic activity over the orbicularis oris superior and inferior, frontalis and flexor carpi radialis muscles...
April 30, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28461214/striatal-dopaminergic-modulation-of-reinforcement-learning-predicts-reward-oriented-behavior-in-daily-life
#15
Zuzana Kasanova, Jenny Ceccarini, Michael J Frank, Thérèse van Amelsvoort, Jan Booij, Alexander Heinzel, Felix Mottaghy, Inez Myin-Germeys
Much human behavior is driven by rewards. Preclinical neurophysiological and clinical positron emission tomography (PET) studies have implicated striatal phasic dopamine (DA) release as a primary modulator of reward processing. However, the relationship between experimental reward-induced striatal DA release and responsiveness to naturalistic rewards, and therefore functional relevance of these findings, has been elusive. We therefore combined, for the first time, a DA D2/3 receptor [(18)F]fallypride PET during a probabilistic reinforcement learning (RL) task with a six day ecological momentary assessments (EMA) of reward-related behavior in the everyday life of 16 healthy volunteers...
April 29, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28456564/respiratory-and-hemodynamic-contributions-to-emotion-related-pre-syncopal-vasovagal-symptoms
#16
Johanna M Harrison, Philippe T Gilchrist, Tiana S Corovic, Curtis Bogetti, Yuqing Song, Simon L Bacon, Blaine Ditto
Vasovagal reactions are conventionally understood as resulting from systemic changes in cardiovascular activity; however, there exists a complementary perspective focused on specific changes in cerebral vasoconstriction associated with hyperventilation-induced hypocapnia. The present study investigated the role cardiovascular and respiratory activity in self-reported pre-syncopal vasovagal reactions to a surgery video in a sample a 49 healthy women. Participants who indicated more previous real-life episodes of dizziness reported experiencing significantly more symptoms in the laboratory consistent with a vasovagal response...
April 26, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28445695/neural-correlates-of-evoked-phantom-limb-sensations
#17
J Andoh, M Diers, C Milde, C Frobel, D Kleinböhl, H Flor
Previous work showed the existence of changes in the topographic organization within the somatosensory cortex (SI) in amputees with phantom limb pain, however, the link between nonpainful phantom sensations such as cramping or tingling or the percept of the limb and cortical changes is less clear. We used functional magnetic resonance imaging (fMRI) in a highly selective group of limb amputees who experienced inducible and reproducible nonpainful phantom sensations. A standardized procedure was used to locate body sites eliciting phantom sensations in each amputee...
April 23, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28445694/work-first-then-play-prior-task-difficulty-increases-motivation-related-brain-responses-in-a-risk-game
#18
Barbara Schmidt, Patrick Mussel, Roman Osinsky, Björn Rasch, Stefan Debener, Johannes Hewig
Task motivation depends on what we did before. A recent theory differentiates between tasks that we want to do and tasks that we have to do. After a have-to task, motivation shifts towards a want-to task. We measured this shift of motivation via brain responses to monetary feedback in a risk game that was used as want-to task in our study. We tested 20 healthy participants that were about 28 years old in a within-subjects design. Participants worked on a Stroop task (have-to task) or an easier version of the Stroop task as a control condition and played a risk game afterwards (want-to task)...
April 23, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28419834/sex-differences-in-autonomic-response-and-situational-appraisal-of-a-competitive-situation-in-young-adults
#19
Diana Abad-Tortosa, Adrián Alacreu-Crespo, Raquel Costa, Alicia Salvador, Miguel Ángel Serrano
Competition is a social stressor capable of eliciting physiological responses modulated by the outcome. The main objective of this study was to analyze the psychophysiological changes associated with competition and its outcome in men and women, taking into account the role of situational appraisal. To this end, 112 young people (46 men and 66 women) participated in a laboratory task in a competitive or non-competitive condition, while Blood Pressure (BP), Heart Rate Variability (HRV), and Skin Conductance (SC) responses were measured...
April 16, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28411034/task-optimal-auditory-attention-set-restored-as-fast-in-older-as-in-younger-adults-after-distraction
#20
Márta Volosin, Zsófia Anna Gaál, János Horváth
The present study investigated how fast younger and older adults recovered from a distracted attentional state induced by rare, unpredictable sound events. The attentional state was characterized by the auditory N1 event-related potential (ERP), which is enhanced for sound events in the focus of attention. Younger (19-26 years) and older (62-74 years) adults listened to continuous tones containing rare pitch changes (glides) and short gaps. Glides and gaps could be separated in 150ms, 250ms, 650ms or longer and the task was gap detection while ignoring glides...
April 12, 2017: Biological Psychology
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