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  Life   Relationship  20 Oct 2019  Negative emotions can evoke trust issues

Negative emotions can evoke trust issues

ANI
Published : Oct 20, 2019, 12:00 pm IST
Updated : Oct 20, 2019, 12:00 pm IST

Negative emotions can make you distrustful.

Negative effect suppresses the social cognitive neural machinery important for understanding and predicting others' behaviour. (Photo: ANI)
 Negative effect suppresses the social cognitive neural machinery important for understanding and predicting others' behaviour. (Photo: ANI)

Washington: Bad mood and negative emotions can make a person more distrustful, says a recent study. Negative emotions reduce how much we trust others, even if these emotions were triggered by events that have nothing to do with the decision to trust.

These emotions can influence the way we interact with others is well known - just think of how easily an argument with a loved one can get heated. But what about when these emotions are triggered by events that have nothing to do with the person we are interacting with, for instance, the annoyance caused by a traffic jam or a parking fine.

 

Researchers call these types of emotions "incidental" because they were triggered by events that are unrelated to our currently ongoing social interactions. It has been shown that incidental emotions frequently occur in our day-to-day interactions with others, although we might not be fully aware of them.

As part of the study, a team of researchers investigated whether the incidental aversive effect can influence the trust behaviour and the brain networks relevant for supporting social cognition. To induce a prolonged state of negative affect, the team used the well-established threat-of-shock method, in which participants are threatened with (but only sometimes given) an unpleasant electrical shock. This threat has been shown to reliably induce anticipatory anxiety.

 

Within this emotional context, participants were then asked to play a trust game, which involved decisions about how much money they wished to invest in a stranger (with the stranger having the possibility to repay in kind or keep all the invested money to themselves). The researchers have found that participants indeed trusted significantly less when they were anxious about receiving a shock, even though the threat had nothing to do with their decision to trust.

The team also recorded participants' brain responses using functional magnetic resonance imaging (MRI) while they made trust decisions. This revealed that a region that is widely implicated in understanding others' beliefs, the temporoparietal junction (TPJ), was significantly suppressed during trust decisions when participants felt threatened, but not when they felt safe.

 

The connectivity between the TPJ and the amygdala was also significantly suppressed by negative affect. Moreover, under safe conditions, the strength of the connectivity between the TPJ and other important social cognition regions, such as the posterior superior temporal sulcus and the dorsomedial prefrontal cortex, predicted how much participants trusted others. This relationship between brain activity and behaviour was nullified when participants felt anxious.

"These results show that negative emotions can significantly impact our social interactions, and specifically how much we trust others. They also reveal the underlying effects of a negative effect on brain circuitry. Negative effect suppresses the social cognitive neural machinery important for understanding and predicting others' behaviour," explained authors Jan Engelmann and Christian Ruff.

 

Tags: trust issues, negative emotions, distrust