The relation between interoceptive accuracy, temperament and personality
Date
2016Access restrictions
This material has a restricted access due to copyright reasons. It can be read at the workstation at Jyväskylä University Library reserved for the use of archival materials: https://kirjasto.jyu.fi/en/workspaces/facilities.
Interoception is defined as an afferent information that can be sensed anywhere from within the
body. Interoceptive accuracy is an objective measure of detection of interoceptive
signals. According to previous studies the differences between humans in experiencing intence
emotions lies in their ability to accurately detect interoceptive signals. It seems that temperament
and personality could be behind the differences as there is evidence that especially temperament has
connection to emotionality and can be connected to neural systems that are also linked to
interoception. We hypothesized that temperament is more likely to be related to interoception than
personality and that temperament traits related to negative affectivity and anxiety are related to
interoceptive accuracy.
This study was part of a project on interoception that began in University of Jyväskylä’s psychology
faculty in the autumn of 2015. There were 37 participants aged between 18-35. The interoceptive
accuracy was tested with experimental setting including a heartbeat detection task. Participants
were asked to attend to their own heartbeat and answer if the delivered audio signal matched their
real-time heartbeat or not. 16 series of auditory signals were delivered, each of them containing 10
sounds. Each of the sounds were either synchronized to participants’ heartbeat or were delivered
with a 500-millisecond delay. Personality and temperament were measured with questionnaires.
The data was analyzed statistically with independent sample t-test, Pearson correlation and
regression analysis.
As we expected, interoception and temperament were connected but interoception and personality
were not. The strongest connection was between interoception and factor scale effortful control and
especially its subscale attention control. The second important link appeared between interoception
and orienting sensitivity and its subscale associative sensitivity. Sadness also appeared to have
some kind of connection to interoception and it had an effect on the connection between
interoception and the sensitivity traits. It remains unclear whether level of interoceptive accuracy
causes certain temperament traits or the traits cause the accuracy.
...
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