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Interoception

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https://www.readbyqxmd.com/read/28212526/can-you-feel-the-body-that-you-see-on-the-relationship-between-interoceptive-accuracy-and-body-image
#1
Giorgia Zamariola, Flavia Cardini, Emanuel Mian, Andrea Serino, Manos Tsakiris
Interoception and exteroception for body signals are two different ways of perceiving the self: the first from within, the second from outside. We investigated the relationship between Interoceptive Accuracy (IAcc) and external perception of the body and we tested if seeing the body from an external perspective can affect IAcc. Fifty-two healthy female subjects performed a standard heartbeat perception task to assess the IAcc, before and after the Body Image Revealer (BIR), which is a body perception task designed to assess the different aspects of body-image...
February 14, 2017: Body Image
https://www.readbyqxmd.com/read/28211586/social-cognition-and-emotional-functioning-in-patients-with-binge-eating-disorder
#2
Matteo Aloi, Marianna Rania, Mariarita Caroleo, Pasquale De Fazio, Cristina Segura-García
OBJECTIVE: This study aims to evaluate the theory of mind ability in a sample of obese patients with and without binge eating disorder (BED) and to explore the correlations between emotional and clinical assessments. METHODS: Overall, 20 non-BED, 16 under-threshold BED and 22 BED obese patients completed a battery of tests assessing social cognition and eating disorder psychopathology. RESULTS: Binge eating disorder, non-BED and under-threshold-BED obese patients showed similar ability to recognise others' emotions, but BED obese patients exhibited a deficit in recognising their own emotions as demonstrated by more impaired levels of alexithymia and interoceptive awareness and were more depressed...
February 17, 2017: European Eating Disorders Review: the Journal of the Eating Disorders Association
https://www.readbyqxmd.com/read/28210930/emotion-specific-nocebo-effects-an-fmri-study
#3
Anne Schienle, Carina Höfler, Sonja Übel, Albert Wabnegger
The neurobiological mechanisms of nocebos are still poorly understood. Thirty-eight women participated in a 'smell study' using functional magnetic resonance imaging. They were presented with an odorless stimulus (distilled water) together with the verbal suggestion that this fluid has an aversive odor which enhances disgust feelings. The nocebo was presented while the participants viewed disgusting, fear-inducing, and neutral images. Participants' affective and neuronal responses during nocebo administration were compared with those in a control condition without nocebo...
February 16, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28186381/psychiatric-and-psychological-aspects-in-the-ehlers-danlos-syndromes
#4
Antonio Bulbena, Carolina Baeza-Velasco, Andrea Bulbena-Cabré, Guillem Pailhez, Hugo Critchley, Pradeep Chopra, Nuria Mallorquí-Bagué, Charissa Frank, Stephen Porges
There is increasing amount of evidence pointing toward a high prevalence of psychiatric conditions among individuals with hypermobile type of Ehlers-Danlos syndrome (JHS/hEDS). A literature review confirms a strong association between anxiety disorders and JHSh/hEDS, and there is also limited but growing evidence that JHSh/hEDS is also associated with depression, eating, and neuro-developmental disorders as well as alcohol and tobacco misuse. The underlying mechanisms behind this association include genetic risks, autonomic nervous system dysfunction, increased exteroceptive and interoceptive mechanisms and decreased proprioception...
February 10, 2017: American Journal of Medical Genetics. Part C, Seminars in Medical Genetics
https://www.readbyqxmd.com/read/28167076/brain-network-alterations-in-the-inflammatory-soup-animal-model-of-migraine
#5
Lino Becerra, James Bishop, Gabi Barmettler, Vanessa Kainz, Rami Burstein, David Borsook
Advances in our understanding of the human pain experience have shifted much of the focus of pain research from the periphery to the brain. Current hypotheses suggest that the progression of migraine depends on abnormal functioning of neurons in multiple brain regions. Accordingly, we sought to capture functional brain changes induced by the application of an inflammatory cocktail known as inflammatory soup (IS), to the dura mater across multiple brain networks. Specifically, we aimed to determine whether IS alters additional neural networks indirectly related to the primary nociceptive pathways via the spinal cord to the thalamus and cortex...
February 3, 2017: Brain Research
https://www.readbyqxmd.com/read/28163798/phenomenological-fingerprints-of-four-meditations-differential-state-changes-in-affect-mind-wandering-meta-cognition-and-interoception-before-and-after-daily-practice-across-9%C3%A2-months-of-training
#6
Bethany E Kok, Tania Singer
Despite increasing interest in the effects of mental training practices such as meditation, there is much ambiguity regarding whether and to what extent the various types of mental practice have differential effects on psychological change. To address this gap, we compare the effects of four common meditation practices on measures of state change in affect, mind-wandering, meta-cognition, and interoception. In the context of a 9-month mental training program called the ReSource Project, 229 mid-life adults (mean age 41) provided daily reports before and after meditation practice...
2017: Mindfulness
https://www.readbyqxmd.com/read/28162895/the-brain-basis-for-misophonia
#7
Sukhbinder Kumar, Olana Tansley-Hancock, William Sedley, Joel S Winston, Martina F Callaghan, Micah Allen, Thomas E Cope, Phillip E Gander, Doris-Eva Bamiou, Timothy D Griffiths
Misophonia is an affective sound-processing disorder characterized by the experience of strong negative emotions (anger and anxiety) in response to everyday sounds, such as those generated by other people eating, drinking, chewing, and breathing [1-8]. The commonplace nature of these sounds (often referred to as "trigger sounds") makes misophonia a devastating disorder for sufferers and their families, and yet nothing is known about the underlying mechanism. Using functional and structural MRI coupled with physiological measurements, we demonstrate that misophonic subjects show specific trigger-sound-related responses in brain and body...
February 1, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28159647/alcohol-stress-and-glucocorticoids-from-risk-to-dependence-and-relapse-in-alcohol-use-disorders
#8
REVIEW
Sara K Blaine, Rajita Sinha
In this review, we detail the clinical evidence supporting the role of psychological and physiological stress in instrumental motivation for alcohol consumption during the development of mild to moderate alcohol use disorders (AUDs) and in the compulsive, habitual alcohol consumption seen in severe, chronic, relapsing AUDs. Traditionally, the study of AUDs has focused on the direct and indirect effects of alcohol on striatal dopaminergic pathways and their role in the reinforcing effects of alcohol. However, growing evidence also suggests that alcohol directly stimulates the hypothalamic pituitary adrenal (HPA) axis and has effects on glucocorticoid receptors in extrahypothalamic, limbic forebrain, and medial Prefrontal Cortex (PFC) circuits, which contribute to the development of AUDs and their progression in severity, chronicity, and relapse risk...
February 1, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28157228/the-neuroeconomics-of-tobacco-demand-an-initial-investigation-of-the-neural-correlates-of-cigarette-cost-benefit-decision-making-in-male-smokers
#9
Joshua C Gray, Michael T Amlung, Max Owens, John Acker, Courtney L Brown, Gene H Brody, Lawrence H Sweet, James MacKillop
How the brain processes cigarette cost-benefit decision making remains largely unknown. Using functional magnetic resonance imaging (fMRI), this study investigated the neural correlates of decisions for cigarettes (0-10 cigarettes) at varying levels of price during a Cigarette Purchase Task (CPT) in male regular smokers (N = 35). Differential neural activity was examined between choices classified as inelastic, elastic, and suppressed demand, operationalized as consumption unaffected by cost, partially suppressed by cost, and entirely suppressed by cost, respectively...
February 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28152451/can-natural-ways-to-stimulate-the-vagus-nerve-improve-seizure-control
#10
REVIEW
Alan W C Yuen, Josemir W Sander
The vagus nerve (VN) is the longest cranial nerve, innervating the neck, thorax and abdomen, with afferent fibers transmitting a range of interoceptive stimuli and efferent fibres to somatic structures and autonomic preganglions. Over the last few decades, electrical stimulation of the VN using implanted devices (VNS) has been developed leading to its approval for the treatment of epilepsy and depression. More recently, non-invasive devices to stimulation the VN have been developed. The VN has many functions and the activity that is most amenable to assessment is its effect in controlling the cardiac rhythm...
January 30, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28152083/group-qigong-for-adolescent-inpatients-with-anorexia-nervosa-incentives-and-barriers
#11
Juliette Gueguen, Marie-Aude Piot, Massimiliano Orri, Andrea Gutierre, Jocelyne Le Moan, Sylvie Berthoz, Bruno Falissard, Nathalie Godart
BACKGROUND: Qigong is a mind-body intervention focusing on interoceptive awareness that appears to be a promising approach in anorexia nervosa (AN). In 2008, as part of our multidimensional treatment program for adolescent inpatients with AN, we began a weekly qigong workshop that turned out to be popular among our adolescent patients. Moreover psychiatrists perceived clinical benefits that deserved further exploration. METHODS AND FINDINGS: A qualitative study therefore sought to obtain a deeper understanding of how young patients with severe AN experience qigong and to determine the incentives and barriers to adherence to qigong, to understanding its meaning, and to applying it in other contexts...
2017: PloS One
https://www.readbyqxmd.com/read/28146026/does-postural-awareness-contribute-to-exercise-induced-improvements-in-neck-pain-intensity-a-secondary-analysis-of-a-randomized-controlled-trial-evaluating-tai-chi-and-neck-exercises
#12
Romy Lauche, Peter M Wayne, Johannes Fehr, Christoph Stumpe, Gustav Dobos, Holger Cramer
STUDY DESIGN: Secondary analysis of a randomized controlled trial OBJECTIVE.: This secondary analysis aims to examine associations of improvement of chronic neck pain with patients' and intervention-related characteristics. SUMMARY OF BACKGROUND DATA: Previous research has found that Tai Chi and neck exercises significantly improved chronic non-specific neck pain; however the factors for treatment success remain unclear. METHODS: Subjects with chronic non-specific neck pain were randomly assigned to 12 weeks of group Tai Chi or conventional neck exercises, and they attended 12 weekly sessions of 60-90 minutes...
January 31, 2017: Spine
https://www.readbyqxmd.com/read/28143760/pretreatment-biomarkers-predicting-ptsd-psychotherapy-outcomes-a-systematic-review
#13
REVIEW
Peter J Colvonen, Lisa H Glassman, Laura D Crocker, Melissa M Buttner, Henry Orff, Dawn M Schiehser, Sonya B Norman, Niloofar Afari
Although our understanding of the relationship between posttraumatic stress disorder (PTSD), brain structure and function, neural networks, stress-related systems, and genetics is growing, there is considerably less attention given to which biological markers predict evidence-based PTSD psychotherapy outcomes. Our systematic PRISMA-informed review of 20 studies examined biomarkers as predictors of evidence-based PTSD psychotherapy outcomes. Results provide preliminary evidence that specific structural and functional neural systems (involved in information processing), glucocorticoid sensitivity and metabolism (part of the hypothalamic-pituitary-adrenal axis and the response to stress), heart rate (involved with fear habituation), gene methylation, and certain genotypes (associated with serotonin and glucocorticoids) predicted positive response to PTSD treatment...
January 28, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28142083/is-computerized-psychoeducation-sufficient-to-reduce-anxiety-sensitivity-in-an-at-risk-sample-a-randomized-trial
#14
Aaron M Norr, Brittany A Gibby, Norman B Schmidt
BACKGROUND: Anxiety sensitivity (AS), or a fear of anxiety-related sensations, has become one of the most well researched risk factors for the development of psychopathology and comprises three subfactors: physical, cognitive, and social concerns. Fortunately, research has demonstrated brief protocols can successfully reduce AS, and in turn improve psychopathological symptoms. Computerized AS reduction protocols have combined psychoeducation with interoceptive exposure (IE), but they have not been dismantled to evaluate the effects of psychoeducation alone...
January 23, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28139018/the-influence-of-social-stress-on-time-perception-and-psychophysiological-reactivity
#15
Kathryne van Hedger, Elizabeth A Necka, Anam K Barakzai, Greg J Norman
Time perception is a fundamental component of everyday life. Although time can be measured using standard units, the relationship between an individual's experience of perceived time and a standard unit is highly sensitive to context. Stressful and threatening stimuli have been previously shown to produce time distortion effects, such that individuals perceive the stimuli as lasting for different amounts of time as compared to a standard unit. As a highly social species, humans are acutely sensitive to social stressors; however, time distortion effects have not been studied in the context of social stress...
January 31, 2017: Psychophysiology
https://www.readbyqxmd.com/read/28112541/targeted-rehabilitation-reduces-visual-dependency-and-improves-balance-in-severe-traumatic-brain-injury-a-case-study
#16
Diego Kaski, Joseph Buttell, Richard Greenwood
PURPOSE: To further understand the mechanisms underlying gait impairment following traumatic brain injury. CASE REPORT: A 58-year-old man presented with marked unsteadiness and motion sensitivity following a severe traumatic brain injury. He underwent a 6-week inpatient rehabilitation program focused on re-weighting and subsequently re-integrating ascending interoceptive information, by gradual reduction of maladaptive visual fixation techniques. We report clinical neurological outcomes and measures of functional outcome, as well as an objective assessment of visual dependency (the rod and disk test) at baseline and after the rehabilitation...
January 23, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28107892/generalized-hypervigilance-in-fibromyalgia-normal-interoceptive-accuracy-but-reduced-self-regulatory-capacity
#17
Silke Rost, Dimitri M L Van Ryckeghem, André Schulz, Geert Crombez, Claus Vögele
OBJECTIVE: The factors underlying the aetiology of fibromyalgia (FM) are largely unknown. According to the generalized hypervigilance hypothesis (GHH), FM patients show excessive attention towards pain stimuli and other sensory events, thereby increasing pain perception and dysfunctional behaviour. We tested this notion by assessing interoceptive accuracy (IA) in FM patients and matched healthy controls. We also tested the hypothesis that FM is characterized by reduced self-regulatory capacity as indexed by heart rate variability (HRV)...
February 2017: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/28104355/allopregnanolone-induces-state-dependent-fear-via-the-bed-nucleus-of-the-stria-terminalis
#18
Gillian M Acca, Abel S Mathew, Jingji Jin, Stephen Maren, Naomi Nagaya
Gonadal steroids and their metabolites have been shown to be important modulators of emotional behavior. Allopregnanolone (ALLO), for example, is a metabolite of progesterone that has been linked to anxiety-related disorders such as posttraumatic stress disorder. In rodents, it has been shown to reduce anxiety in a number of behavioral paradigms including Pavlovian fear conditioning. We have recently found that expression of conditioned contextual (but not auditory) freezing in rats can be suppressed by infusion of ALLO into the bed nucleus of the stria terminalis (BNST)...
January 16, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/28095318/interoceptive-modulation-of-neuroendocrine-emotional-and-hypophagic-responses-to-stress
#19
REVIEW
James W Maniscalco, Linda Rinaman
Periods of caloric deficit substantially attenuate many centrally mediated responses to acute stress, including neural drive to the hypothalamic-pituitary-adrenal (HPA) axis, anxiety-like behavior, and stress-induced suppression of food intake (i.e., stress hypophagia). It is posited that this stress response plasticity supports food foraging and promotes intake during periods of negative energy balance, even in the face of other internal or external threats, thereby increasing the likelihood that energy stores are repleted...
January 14, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28094772/cardiac-afferent-activity-modulates-the-expression-of-racial-stereotypes
#20
Ruben T Azevedo, Sarah N Garfinkel, Hugo D Critchley, Manos Tsakiris
Negative racial stereotypes tend to associate Black people with threat. This often leads to the misidentification of harmless objects as weapons held by a Black individual. Yet, little is known about how bodily states impact the expression of racial stereotyping. By tapping into the phasic activation of arterial baroreceptors, known to be associated with changes in the neural processing of fearful stimuli, we show activation of race-threat stereotypes synchronized with the cardiovascular cycle. Across two established tasks, stimuli depicting Black or White individuals were presented to coincide with either the cardiac systole or diastole...
January 17, 2017: Nature Communications
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