RESEARCH_FILE
John T. Cacioppo
University of Chicago
Known for:The evolutionary model of loneliness as an adaptive signal, and the hypervigilance-for-social-threat findings
SEE THE PRACTICE
Turn a thought this research explains into one clear move.
THE THOUGHT
“It's too late to make real friends”
YOUR RECORDED RESPONSE
“The hours that make friendship happen weren't seasonal—I just stopped getting them automatically.”
ONE PRIVATE MOVE
Identify one person you see regularly and actually enjoy talking to. Over the next week, simply show up to the same place three times without initiating anything. Note whether they acknowledge you or seem annoyed by your presence.
Key findings
- 2006
Loneliness fits an evolutionary account: like hunger or thirst, it is an aversive signal that motivated our ancestors to maintain and repair social bonds — a functional mechanism, not a character defect of the person who feels it. Loneliness within a nomological net: An evolutionary perspective ↗
- 2014
Perceived social isolation triggers implicit hypervigilance for social threat, producing attentional, confirmatory and memory biases in how social information is processed — which can make the social world look more hostile than it is. Evolutionary mechanisms for loneliness ↗
- 2015
In high-density EEG work with colleagues, lonely participants' brains differentiated social threat images within about 116 ms of stimulus onset versus about 252 ms in nonlonely participants — direct evidence that the threat bias operates automatically, below deliberate control. Loneliness and implicit attention to social threat: A high-performance electrical neuroimaging study ↗