Eating and weight disorders : EWD · 2022
Anorexia nervosa as a disorder of the subcortical-cortical interoceptive-self.
Систематический обзорСтатьяНазвание и аннотация: Перевод в очереди
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Lucherini Angeletti Lorenzo, Innocenti Matteo, Felciai Federica, Ruggeri Emanuele, Cassioli Emanuele, Rossi Eleonora, Rotella Francesco, Castellini Giovanni, Stanghellini Giovanni, Ricca Valdo, Northoff Georg
Аннотация
PURPOSE: Anorexia nervosa (AN) is characterized by a diminished capacity in perceiving the physiological correlates of interoceptive sensations, namely bodily self-consciousness. Given the neural division of self-processing into interoceptive-, exteroceptive- and mental-self, we hypothesize neural deficits in the interoceptive-processing regions in AN.
METHODS: To prove this, we reviewed resting state (rs), task and rest-task studies in AN literature.
RESULTS: Neuronal data demonstrate the following in AN: (i) decreased rs-functional connectivity (rsFC) of subcortical-cortical midline structures (SCMS); (ii) reduced rsFC between medial (default-mode network/DMN and salience network/SN) and lateral (executive-control network/ECN) cortical regions; (iii) decreased rsFC in mainly the regions of the interoceptive-self; (iv) altered activity with overall increased activity in response to sensory/body image stimuli, especially in the regions of the interoceptive-self; (v) lack of a clear task-related distinction between own's and others' body image.
CONCLUSION: These data may indicate that rs-hypoconnectivity between SCMS, as neural correlate of a reduced intero-exteroceptive integration resulting in self-objectification, might be linked to overall increased activity in interoceptive regions during sensory/body image stimuli in AN, engendering an "anxious bodily self."
LEVEL OF EVIDENCE: I: Systematic review.
METHODS: To prove this, we reviewed resting state (rs), task and rest-task studies in AN literature.
RESULTS: Neuronal data demonstrate the following in AN: (i) decreased rs-functional connectivity (rsFC) of subcortical-cortical midline structures (SCMS); (ii) reduced rsFC between medial (default-mode network/DMN and salience network/SN) and lateral (executive-control network/ECN) cortical regions; (iii) decreased rsFC in mainly the regions of the interoceptive-self; (iv) altered activity with overall increased activity in response to sensory/body image stimuli, especially in the regions of the interoceptive-self; (v) lack of a clear task-related distinction between own's and others' body image.
CONCLUSION: These data may indicate that rs-hypoconnectivity between SCMS, as neural correlate of a reduced intero-exteroceptive integration resulting in self-objectification, might be linked to overall increased activity in interoceptive regions during sensory/body image stimuli in AN, engendering an "anxious bodily self."
LEVEL OF EVIDENCE: I: Systematic review.