One in Four Suicide Attempts are Linked to Perceptual Difficulties

by Colleen Fleiss on  November 30, 2018 at 1:17 AM Research News
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Understanding and treating the factors associated with perceptual abnormalities could prevent at least a quarter of suicide attempts and deaths, said researchers at RCSI (Royal College of Surgeons in Ireland). The research has today been published in JAMA Psychiatry.
One in Four Suicide Attempts are Linked to Perceptual Difficulties
One in Four Suicide Attempts are Linked to Perceptual Difficulties

Symptoms such as depressed mood, feelings of worthlessness and a sense of hopelessness are well documented in suicidal behaviour. However, in an analysis of more than 80,000 people, new research has revealed that one quarter of individuals who attempted or died by suicide had problems in basic sensory experiences, such as hearing or seeing things that aren't really there - otherwise known as 'perceptual abnormalities'.

Such episodes are not necessarily associated with psychotic illnesses or depression and can occur in people who do not experience mental illness, according to the study. Research over the past 15 years has shown that experiences such as 'hearing voices' are far more common than previously thought - about 5-7% of the general population report at least occasionally having experiences such as hearing voices. For some people, these experiences emerge when the brain is under stress or when coping levels are exceeded.

Dr Ian Kelleher, RCSI Psychiatry Research Lecturer and study lead, commented: "Our research shows that if we can understand and treat the factors associated with these perceptual abnormalities, we could prevent at least a quarter of suicide attempts and deaths. Given that about 1 million people die by suicide every year, that's a very encouraging prospect for suicide prevention." "These findings show the need both for clinicians to pay particular attention to patients reporting experience of psychotic experience, and for greater funding for research into recognising a psychosis subtype of suicide", added Dr Kelleher.

Kathryn Yates, RCSI Psychiatry and study co-author, said: "If we are to understand suicide, we need to understand a lot more about perceptual abnormalities - what causes people to hear voices? How do these experiences relate to the biological and social factors involved in suicide risk? There are still a lot of unanswered questions; but this research points to new avenues to improve prediction of suicidal behaviour."

The paper, Psychotic experiences and risk of suicidal ideation, suicide attempts and suicide deaths: a systematic review and meta-analysis of longitudinal population studies, is published in JAMA Psychiatry.

Source: Eurekalert

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