Altered interoception may play a major role in the etiology of medically unexplained symptoms (MUS). It remains unclear, however, if these alterations concern noticing of signals or if they are limited to the interpretation of signals. We investigated whether individuals with MUS differ in interoceptive awareness as assessed with the Multidimensional Assessment of Interoceptive Awareness (MAIA) questionnaire. Study 1: A total of 486 individuals completed the Screening for Somatoform Disorders (SOMS-2). Thirty-two individuals each of the upper and lower decile of the SOMS distribution (low symptom reporters/LSR, high symptom reporters/HSR) completed the MAIA. Study 2: MAIA scores of individuals diagnosed with somatoform disorder (SFD; = 26) were compared to individuals with major depressive disorder (MDD; = 25) and healthy controls (HC; = 26). HSR had lower scores than LSR on the MAIA scales Not-Distracting and Not-Worrying. The SFD and MDD groups showed lower scores than HC on the MAIA scales Not-Distracting, Self-Regulation, and Trusting. The MDD group scored lower than the other two groups on the scales Body Listening and Attention Regulation. There were no group differences on the scale Noticing. HSR, SFD, and MDD patients do not differ from HC in the awareness of noticing of interoceptive signal processing, whereas cognitive facets of interoception, such as distraction or self-regulation are differentially affected. This highlights the necessity of including specifically targeted interventions, which improve interoceptive awareness, in the prevention and treatment of SFDs.
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http://dx.doi.org/10.3389/fpsyg.2020.01859 | DOI Listing |
Behav Res Ther
December 2024
Rogers Behavioral Health, Research Center, Oconomowoc WI & Philadelphia PA, 34700 Valley Rd, Oconomowoc, WI, 53066, USA. Electronic address:
The presentation of avoidant/restrictive food intake disorder (ARFID) characterized by fear of aversive consequences of eating (fear-ARFID) has both phenomenological and mechanistic similarities to panic disorder. In this narrative review, we propose a shared model of the pathogenesis of the two disorders, centered on interoceptive sensitivity as the key maintenance mechanism. We review the evidence that fear-ARFID, which involves restrictive eating motivated by a desire to avoid aversive events (e.
View Article and Find Full Text PDFProg Neuropsychopharmacol Biol Psychiatry
December 2024
Department of rehabilitation Medicine, SuiNing Central Hospital, The Affiliated Hospital of Chongqing Medical University, SuiNing 629000, China. Electronic address:
The parabrachial nucleus (PBN) is responsible for integrating both internal and external sensory information and controlling/regulating a wide range of physiological processes, such as feeding, thermogenesis, nociceptive and pruritic sensations, and respiration. Recently, the PBN has been found to be involved in mediating wakefulness maintenance, sleep-wake transition, exogenous neuromodulation of awakening, and arousal-promoting process triggered by drastic changes in the internal environments, such as hypercapnia, hypoxia, and hypertension. Multiple neural pathways and subpopulations of neurons are responsible for arousal-promoting effects of the PBN.
View Article and Find Full Text PDFMindfulness (N Y)
November 2024
Department of Medicine, University of Washington School of Medicine, Harborview Medical Center, 325 Ninth Avenue - Box 359780, Seattle, WA 98104, USA.
Unlabelled: The need for improve medication for opioid use disorder (MOUD) treatment outcomes can be limited by co-occurring polysubstance use, mental health, and chronic pain conditions. Interoceptive training may facilitate well-being and support medication treatment for MOUD.
Objectives: While effective, medication for opioid use disorder (MOUD) treatment outcomes can be limited by co-occurring polysubstance use, mental health, and chronic pain conditions.
PNAS Nexus
December 2024
Institut du Cerveau-Paris Brain Institute-ICM, Inserm, Sorbonne Université, CNRS, APHP,Hôpital de la Pitié Salpêtrière, 75013 Paris, France.
Attention shapes our consciousness content and perception by increasing the probability of becoming aware and/or better encoding a selection of the incoming inner or outer sensory world. Engaging interoceptive and exteroceptive attention should elicit distinctive neural responses to visceral and external stimuli and could be useful in detecting covert command-following in unresponsive patients. We designed a task to engage healthy participants' attention toward their heartbeats or auditory stimuli and investigated whether brain dynamics and the heartbeat-evoked potential (HEP) distinguished covert interoceptive-exteroceptive attention.
View Article and Find Full Text PDFCNS Spectr
December 2024
Faculty of Philosophy and Neurobioethics Research Group (GdN), Pontifical Athenaeum Regina Apostolorum (APRA), Rome, Italy.
This article presents a comprehensive neuroethical framework that seeks to deepen our understanding of human consciousness and free will, particularly in the context of psychiatric and neurological disorders. By integrating insights from neuroscience with philosophical reflections on freedom and personal identity, the paper examines how various states of consciousness from interoception to self-awareness influence an individual's autonomy and decision-making capabilities. The discussion utilizes a multidimensional, bottom-up approach to explore how neurobiological processes underlie different levels of conscious experience and their corresponding types of freedom, such as "intero-freedom" related to internal bodily states and "self-freedom" associated with higher self-awareness.
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