Aberrant Cardiac Interoception in Psychosis.

ABSTRACT:

Background and hypothesis

There is mounting evidence that cardiac interoception, the perception of one's heartbeat, is central to affective experiences. It has been proposed that symptoms of psychosis could arise from interoceptive dysfunction. Here we hypothesized that people with psychotic disorders would have a specific impairment in cardiac interoception, over and above broader perceptual deficits.

Study design

43 adults with a history of psychosis (31 schizophrenia, 12 schizoaffective disorder) and 41 matched control participants completed a heart rate discrimination task. Participants responded to whether they perceived a sequence of auditory tones to be faster or slower than their heart rate. By trialing a range of auditory tone rates, we estimated a threshold for eac

SUBMITTER: Jeganathan J 

PROVIDER: S-EPMC11661957 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature