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Physiologic arousal

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https://www.readbyqxmd.com/read/28239221/behavioural-and-hormonal-stress-responses-to-social-separation-in-ravens-corvus-corax
#1
Alexandru M Munteanu, Martina Stocker, Mareike Stöwe, Jorg J M Massen, Thomas Bugnyar
Social life is profitable, but it facilitates conflicts over resources and creates interdependence between individuals. Separating highly social animals triggers intense reactions aimed at re-establishing lost connections. Less is known, however, about behavioural and physiological responses to separation in socially facultative species, where individuals temporarily form groups and may subsequently leave them. Non-breeding common ravens (Corvus corax) gather in large numbers at feeding and roosting sites, but otherwise spend time seemingly solitary or in small subgroups...
February 2017: Ethology: Formerly Zeitschrift Für Tierpsychologie
https://www.readbyqxmd.com/read/28237935/biopad-leveraging-off-the-shelf-video-games-for-stress-self-regulation
#2
Zelun Wang, Avinash Parnandi, Ricardo Gutierrez-Osuna
This paper presents an approach to use commercial videogames for biofeedback training. It consists of intercepting signals from the game controller and adapting them in real-time based on physiological measurements from the player. We present three sample implementations and a case study for teaching stress self-regulation via an immersive car racing game. We use a crossover gaming device to manipulate controller signals, and a respiratory sensor to monitor the players' breathing rate. We then alter the speed of the car to encourage slow, deep breathing, in this way allowing players to reduce their arousal while playing the game...
February 20, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28227715/bivariate-autoregressive-state-space-modeling-of-psychophysiological-time-series-data
#3
Daniel M Smith, Mohammadreza Abtahi, Amir Mohammad Amiri, Kunal Mankodiya, Daniel M Smith, Mohammadreza Abtahi, Amir Mohammad Amiri, Kunal Mankodiya, Kunal Mankodiya, Daniel M Smith, Mohammadreza Abtahi, Amir Mohammad Amiri
Heart rate (HR) and electrodermal activity (EDA) are often used as physiological measures of psychological arousal in various neuropsychology experiments. In this exploratory study, we analyze HR and EDA data collected from four participants, each with a history of suicidal tendencies, during a cognitive task known as the Paced Auditory Serial Addition Test (PASAT). A central aim of this investigation is to guide future research by assessing heterogeneity in the population of individuals with suicidal tendencies...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227284/on-the-pleasantness-of-a-haptic-stimulation-how-different-textures-can-be-recognized-through-heart-rate-variability-nonlinear-analysis
#4
Mimma Nardelli, Alberto Greco, Matteo Bianchi, Enzo Pasquale Scilingo, Gaetano Valenza, Mimma Nardelli, Alberto Greco, Matteo Bianchi, Enzo Pasquale Scilingo, Gaetano Valenza, Gaetano Valenza, Mimma Nardelli, Alberto Greco, Matteo Bianchi
The hedonic attributes of cutaneous elicitation play a crucial role in everyday life, influencing our behavior and psychophysical state. However, the correlation between such a hedonic aspect of touch and the Autonomic Nervous System (ANS)-related physiological response, which is intimately connected to emotions, still needs to be deeply investigated. This study reports on caress-like stimuli conveyed to the forearm of 32 healthy subjects through different fabrics actuated by a haptic device, which can control both the strength (i...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226828/a-mathematical-model-of-ultradian-sleep-wake-regulation-in-rodents
#5
Hao Wang, Farid Yaghouby, Sridhar Sunderam, Hao Wang, Farid Yaghouby, Sridhar Sunderam, Sridhar Sunderam, Farid Yaghouby, Hao Wang
Rodent models are widely used for the experimental analysis of sleep. While this is motivated by similarities in brain circuitry and electrophysiological rhythms, unlike the circadian sleep-wake cycle in humans, rodent sleep is polyphasic, containing multiple bouts of sleep and wake minutes to hours in duration over the course of a day. Each sleep bout is punctuated by several brief arousals several seconds to minutes long. Physiologically motivated mathematical models replicate the shorter timescale of arousal within sleep, but not the longer one representing prolonged wakefulness...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226630/gaussian-process-dynamical-models-for-multimodal-affect-recognition
#6
Hernan F Garcia, Mauricio A Alvarez, Alvaro A Orozco, Hernan F Garcia, Mauricio A Alvarez, Alvaro A Orozco, Mauricio A Alvarez, Alvaro A Orozco, Hernan F Garcia
Affective computing systems has a great potential in applications for biofeedback systems and cognitive conductual therapies. Here, by analyzing the physiological behavior of a given subject, we can infer the affective state of an emotional process. Since, emotions can be modeled as dynamic manifestations of these signals, a continuous analysis in the valence/arousal space, brings more information of the affective state related to an emotional process. In this paper we propose a method for dynamic affect recognition from multimodal physiological signals...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28223946/tears-falling-on-goosebumps-co-occurrence-of-emotional-lacrimation-and-emotional-piloerection-indicates-a-psychophysiological-climax-in-emotional-arousal
#7
Eugen Wassiliwizky, Thomas Jacobsen, Jan Heinrich, Manuel Schneiderbauer, Winfried Menninghaus
This psychophysiological study is the first to examine the relationship between emotional tears and emotional piloerection (i.e., goosebumps). Although both phenomena have been related to peak states of being moved, details about their temporal occurrence and the associated levels of physiological arousal have remained unknown. In our study, we used emotionally powerful film scenes that were self-selected by participants. Our findings show that even within peak moments of emotional arousal, a gradation of intensity is possible...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28221065/the-american-psychological-association-task-force-assessment-of-violent-video-games-science-in-the-service-of-public-interest
#8
Sandra L Calvert, Mark Appelbaum, Kenneth A Dodge, Sandra Graham, Gordon C Nagayama Hall, Sherry Hamby, Lauren G Fasig-Caldwell, Martyna Citkowicz, Daniel P Galloway, Larry V Hedges
A task force of experts was convened by the American Psychological Association (APA) to update the knowledge and policy about the impact of violent video game use on potential adverse outcomes. This APA Task Force on Media Violence examined the existing literature, including the meta-analyses in the field, since the last APA report on media violence in 2005. Because the most recent meta-analyses were published in 2010 and reflected work through 2009, the task force conducted a search of the published studies from 2009-2013...
February 2017: American Psychologist
https://www.readbyqxmd.com/read/28217102/grima-a-distinct-emotion-concept
#9
Inge Schweiger Gallo, José-Miguel Fernández-Dols, Peter M Gollwitzer, Andreas Keil
People experience an unpleasant sensation when hearing a scratch on a board or plate. The present research focuses on this aversive experience known in Spanish as 'grima' with no equivalent term in English and German. We hypothesized that this aversive experience constitutes a distinctive, separate emotional concept. In Study 1, we found that the affective meaning of 'grima' was closer to disgust than to other emotion concepts. Thus, in Study 2 we explored the features of grima and compared them with disgust...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28209420/-importance-of-the-emotional-dimension-when-providing-information-to-patients-with-obstructive-sleep-apnea-syndrome
#10
J Bros, C Poulet, C Deschaux, M Charavel
INTRODUCTION: To promote adaptation to treatment with continuous positive airway pressure, an information document was developed for people starting their treatment with continuous positive airway pressure. METHODS: Seven patients with obstructive sleep apnea took part in a focus group. This allowed the identification both of useful information and the best way that this information could be presented. RESULTS: The key specific information objectives and the best emotional register to use were as follows: (1) develop awareness about the physiological mechanisms and consequences that can occur from obstructive sleep apnea syndrome, using formulations arousing fear, (2) enable the recognition of the symptoms, risk factors and chronicity of this syndrome, (3) reassure and motivate the patient about treatment with continuous positive airway pressure...
February 13, 2017: Revue des Maladies Respiratoires
https://www.readbyqxmd.com/read/28203263/perception-of-emotional-valence-in-horse-whinnies
#11
Elodie F Briefer, Roi Mandel, Anne-Laure Maigrot, Sabrina Briefer Freymond, Iris Bachmann, Edna Hillmann
BACKGROUND: Non-human animals often produce different types of vocalisations in negative and positive contexts (i.e. different valence), similar to humans, in which crying is associated with negative emotions and laughter is associated with positive ones. However, some types of vocalisations (e.g. contact calls, human speech) can be produced in both negative and positive contexts, and changes in valence are only accompanied by slight structural differences. Although such acoustically graded signals associated with opposite valence have been highlighted in some species, it is not known if conspecifics discriminate them, and if contagion of emotional valence occurs as a result...
2017: Frontiers in Zoology
https://www.readbyqxmd.com/read/28196342/decreased-salivary-alpha-amylase-levels-are-associated-with-performance-deficits-during-sleep-loss
#12
Maja Pajcin, Siobhan Banks, Jason M White, Jill Dorrian, Gemma M Paech, Crystal Grant, Kayla Johnson, Katie Tooley, Justin Fidock, Gary H Kamimori, Chris B Della Vedova
During sleep deprivation, neurobehavioral functions requiring sustained levels of attention and alertness are significantly impaired. Discrepancies between subjective measures of sleepiness and objective performance during sustained operations have led to interest in physiological monitoring of operator performance. Alertness, vigilance, and arousal are modulated by the wake-promoting actions of the central noradrenergic system. Salivary alpha-amylase (sAA) has been proposed as a sensitive peripheral measure of noradrenergic activity, but limited research has investigated the relationship between sAA and performance...
February 1, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28196341/suppressing-the-endocrine-and-autonomic-stress-systems-does-not-impact-the-emotional-stress-experience-after-psychosocial-stress
#13
Nida Ali, Jonas P Nitschke, Cory Cooperman, Jens C Pruessner
Acute psychosocial stress activates the physiological and endocrine stress systems and increases the subjective emotional experience of stress. While considerable efforts have been made to link changes in the activity of the biological stress systems with changes in the subjective emotional experience of stress, results so far have been mixed, at best. To investigate this association in a study employing experimental manipulation, we pharmacologically suppressed both the autonomic and the endocrine stress responses, and investigated the effects of acute psychosocial stress on the emotional stress experience...
January 28, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28192192/moderate-anxiety-modifies-the-electromyographic-activity-of-a-forearm-muscle-during-a-time-reaction-task-in-women
#14
C Langlet, J P Hainaut, B Bolmont
Arousal anxiety has a great impact on reaction time, physiological parameters and motor performance. Numerous studies have focused on the influence of anxiety on muscular activity during simple non ecologic task. We investigate the impact of a moderate state-anxiety (arousal stressor) on the specific component of a complex multi-joint ecologic movement during a reaction time task of auditory stimulus-response. Our objective is to know if central and peripheral voluntary motor processes were modulated in the same way by an arousal stressor...
February 10, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28192169/the-serotonin-transporter-polymorphism-5-httlpr-and-coping-strategies-influence-successful-emotion-regulation-in-an-acute-stress-situation-physiological-evidence
#15
Thomas Plieger, Martin Melchers, Annabel Vetterlein, Janina Görtz, Sarah Kuhn, Melissa Ruppel, Martin Reuter
INTRODUCTION: Emotion regulation is an important everyday-life skill to reduce harm and stress. Consequently, research shows associations between psychopathologies and emotional dysregulation. The serotonin transporter polymorphism (5-HTTLPR) has repeatedly been associated to phenotypes and syndromes related to emotional dysregulation. However, there is no study showing any direct effects of 5-HTTLPR genotype and emotion regulation. Hence, the aim of the present study was to draw a link between 5-HTTLPR to emotion regulation...
February 9, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28188857/sensitivity-to-carbon-dioxide-and-translational-studies-of-anxiety-disorders
#16
Marco Battaglia
Heightened concentrations of CO2 in inhaled air provoke temporary acidification of the brain, followed by compensatory hyperventilation and increased arousal/anxiety. These responses are likely to map a basic, latent general alarm/avoidance system that is largely shared across mammals, and are sources of individual differences. By showing paroxysmal respiratory and emotional responses to CO2 challenges, humans with panic and separation anxiety disorders lie at one extreme of the distribution for CO2 sensitivity...
February 8, 2017: Neuroscience
https://www.readbyqxmd.com/read/28188761/kangaroo-rats-change-temperature-when-investigating-rattlesnake-predators
#17
Hannes A Schraft, Rulon W Clark
Predator presence causes acute stress in mammals. A prey animal's stress response increases its chance of survival during life-threatening situations through adaptive changes in behavior and physiology. Some components of the physiological stress response can lead to changes in body surface temperatures. Body temperature changes in prey could provide information about prey state to predators that sense heat, such as pit vipers. We determined whether wild rodents undergo a stress-induced change in body surface temperature upon detecting and investigating rattlesnake predators...
February 8, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28188383/attenuating-physiological-arousal-through-the-manipulation-of-simple-hand-movements
#18
Shaun S Stearns, Raymond Fleming, Lindsay J Fero
The current study tests whether manipulating simple motor movements can regulate one's physiological reactivity to negative images. Healthy college age participants were randomly assigned to no tapping, steady tapping, or slow tapping conditions and viewed two sets of 15 negative images from the international affective picture system. Participants viewed the first image set without manipulation. During the second image set, they were instructed to tap at a steady pace, a slow pace or not at all. Steady tapping suppressed the vagal component of the cardiovascular defense response, and produced a significant increase in respiration rate and skin conductance level (SCL)...
February 10, 2017: Applied Psychophysiology and Biofeedback
https://www.readbyqxmd.com/read/28185871/differential-arc-protein-expression-in-dorsal-and-ventral-striatum-after-moderate-and-intense-inhibitory-avoidance-training
#19
Diego A González-Franco, Víctor Ramírez-Amaya, Patricia Joseph-Bravo, Roberto A Prado-Alcalá, Gina L Quirarte
Intense training refers to training mediated by emotionally arousing experiences, such as aversive conditioning motivated by relatively high intensities of foot-shock, which produces a strong memory that is highly resistant to extinction. Intense training protects memory consolidation against the amnestic effects of a wide variety of treatments, administered systemically or directly into brain structures. The mechanisms of this protective effect are unknown. To determine a potential neurobiological correlate of the protective effect of intense training, rats were trained in a one-trial step-through inhibitory avoidance task using different intensities of foot-shock (0...
February 6, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28168211/dynamic-regimes-of-neocortical-activity-linked-to-corticothalamic-integrity-correlate-with-outcomes-in-acute-anoxic-brain-injury-after-cardiac-arrest
#20
Peter B Forgacs, Hans-Peter Frey, Angela Velazquez, Stephanie Thompson, Daniel Brodie, Vivek Moitra, Leroy Rabani, Soojin Park, Sachin Agarwal, Maria Cristina Falo, Nicholas D Schiff, Jan Claassen
OBJECTIVE: Recognition of potential for neurological recovery in patients who remain comatose after cardiac arrest is challenging and strains clinical decision making. Here, we utilize an approach that is based on physiological principles underlying recovery of consciousness and show correlation with clinical recovery after acute anoxic brain injury. METHODS: A cohort study of 54 patients admitted to an Intensive Care Unit after cardiac arrest who underwent standardized bedside behavioral testing (Coma Recovery Scale - Revised [CRS-R]) during EEG monitoring...
February 2017: Annals of Clinical and Translational Neurology
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