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6th World Congress on
Mental Health, Psychiatry and Wellbeing
March 20-21, 2019 | New York, USA
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PLASN: Predictive
Linguistics Applied to
Suicide Notes posted
online by suicide
attempters and suicide
completers
The suicide note (or letter) is
a written message left by a
person who committed suicide
or attempted suicide. In France,
the percentage of left letters
is estimated 25%-30% of the
total number of suicides. These
letters contain information
relevant both to the study of
pathologies associated with
suicidality and to the prevention
of suicide and recidivism. The
predictability of the suicidal
act is very variable and there
is no consensus regarding
the psychological portrait of
suicidal subjects. However,
different profiles and risk
factors have been identified
by medical research, notably
through “predictive linguistic
autopsy”. This method is based
on the collection and analysis
of writings (suicide notes and
messages) in order to better
understand the motivations and
circumstances surrounding his
or her suicidal attempt or death.
At present, suicide notes and
messages are used primarily for
legal purposes but little or no
study is done to investigate the
« autopsy of life ». In France,
this first-hand material is often
available online (on the Internet
and social networks) but has
never been collected or studied
extensively in order to monitor
suicide and prevent recidivism.
The intentionality and the
motivation of the subjects who
attempt suicide after posting
their note online remain little
known, and the publications on
this topic are very rare. To date,
there is no French clinical study
on suicidal letters based on a
predictive linguistic approach.
This communication aims at
presenting the results of a
study conducted in 2018 on
more than 100 notes in order
to detect, through words and
posted messages, the subject’s
intentionality, suicidal ideation,
the aggravating or precipitating
circumstances, as well as
the presence of psychiatric
pathologies or other co-
morbidities. In order to better
prevent suicide and recidivism,
all suicide letters posted online
during the last year (2018) have
been documented and studied
using a monitoring system
based on predictive linguistics.
The main objective is to study
the content of the suicide
notes and messages from a
patholinguistic point of view in
order to detect signs of suicidal
crisis, to monitor and to prevent
suicidal behavior. Secondary
objectives include the study
of indicators of suicidal intent,
the study of linguistic markers
of gravity and psychic pain, as
well as the study of signs of
depression related to suicidal
behavior. Ultimately, the goal
is to carry out detection and
prevention actions upstream,
with innovative means resulting
from predictive linguistics tools
such as electronic monitoring of
suicidal intentions, and remote
monitoring of suicidal patients.
Mathieu Guidere
National Institute of Health and
Medical Research, France
INTERNATIONAL JOURNAL OF EMERGENCYMENTAL HEALTHANDHUMAN RESILIENCE 2019, VOLUME 21
DOI: 10.4172/1522-4821-C2-028
KEYNOTE FORUM | DAY 2