"Participants in the warm room used more concrete, physical language to describe the film and reported feeling socially closer to the experimenter than did the participants in a cold room... participants in a warm room were more likely to recognise the "relational similarity" between objects."
Related to temperature metaphors, e.g. "Holding warm feelings toward someone" and "giving someone the cold shoulder". Actual study at http://www.ncbi.nlm.nih.gov/pubmed/19732385
Have you ever experienced mind-numbing cold? Or have you ever felt like it was so hot you could barely think? Believe it or not, these expressions are more than just idioms. Research shows that shifts in core body temperature caused by extreme heat or cold can have significant effects not only on mood but also on cognition.
Recent studies suggest that metaphors are more than just fancy literary devices and that there is a psychological basis for linking cold with feelings of social isolation. Psychologists Chen-Bo Zhong and Geoffrey Leonardelli from the University of Toronto's Rotman School of Management wanted to test the idea that social isolation might generate a physical feeling of coldness. In their first experiment, they divided a group of volunteers into two groups. One group recalled a personal experience in which they had been socially excluded-rejection from a club, for example. This was meant to tap into their feelings of isolation and loneliness. The other group recalled an experience in which they had been accepted into a group. Afterwards, volunteers were asked to estimate the temperature in the room. Those who recalled memories of being ostracized experienced the ambient temperature of the room as colder.
In a second experiment, researchers triggered feelings of exclusion by having volunteers play a computer-simulated ball tossing game. The game was designed so that some of the volunteers had the ball tossed to them many times, but others were left out.
Afterwards, all the volunteers rated the desirability of certain foods and beverages: hot coffee, crackers, an ice-cold Coke, an apple, and hot soup. The findings were striking. As reported in the September issue of Psychological Science, a journal of the Association for Psychological Science, the "unpopular" volunteers who had been ostracized during the computer game were much more likely than the others to want either hot soup or hot coffee. Their preference for warm food and drinks presumably resulted from physically feeling cold as a result of being excluded.
"It's striking that people preferred hot coffee and soup more when socially excluded," Leonardelli said. "Our research suggests that warm chicken soup may be a literal coping mechanism for social isolation."