Trust

Definition

Trust refers to a person's confident belief that another's motivations are benevolent toward him or her and that the other person will therefore be responsive to his or [Page 999]her needs. Trust is typically viewed as a belief about a specific person, though it has also been viewed as a personality trait characterizing people's tendency to trust or distrust others in general.

Evolutionary Foundations

Evolutionary thinkers have argued that issues of trust were critical to the survival of early humans. Because one's welfare depended on cooperation and exchange with others, for instance in trading berries or other fruit for meat, people needed to anticipate who they could count on to engage in fair exchanges and who, instead, deserved their suspicions as possible cheaters. They also needed to understand who among their significant others could be truly relied on to take care of them in times of serious need and who, instead, were fair-weather friends. Given that issues of trust were so important for early humans' welfare, evolutionary theorists contend that specific mechanisms likely exist in the modern brain that allow people to monitor behaviors relevant to others' motivations and calibrate the level of trust that a person warrants—a suspicion meter, if you will.

Trust in Close Relationships

Trust, of course, remains very critical in modern life, especially in one's significant relationships with family, friends, and romantic partners. Close attachments such as these oblige people to depend and rely on others' good intentions, that is, to become more heavily interdependent with others to satisfy their own central needs. As the extent of risk and possible costs of rejection and betrayal increase in such relationships, the stakes become much higher and trust becomes all the more critical. It is therefore unsurprising that research on trust has been most prevalent within the contexts of these close relationships.

The development of trust in a relationship is usually a gradual process that requires social interactions and experiences with a person that suggest he or she is predictable and dependable, especially in situations in which costly sacrifices by another may be necessary to be responsive to one's own needs. Such situations are seen as diagnostic because clearer conclusions about others' motives can be drawn when helping is costly to another and not in their short-term interests. However, to achieve a true sense of confidence in another person, one must eventually go beyond the available evidence and make a leap of faith. Past evidence can never fully predict future behavior, so to genuinely trust and achieve some peace of mind about a significant other, people must set aside their uncertainties and simply act in a trusting way.

The amount of trust that develops in a relationship is crucial because it regulates the extent to which people allow themselves to be committed to and invested in that relationship. That is, people will only take the risk of caring and becoming attached to someone they believe reciprocates their affections. Uncertainty or insecurity about whether a partner has a strong positive regard for them can result in people pulling back or increasing their psychological distance from the partner, a self-protective behavior that reduces the risk of being hurt and let down.

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