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3 " A wealth of research confirms the importance of face-to-face contact. One experiment performed by two researchers at the University of Michigan challenged groups of six students to play a game in which everyone could earn money by cooperating. One set of groups met for ten minutes face-to-face to discuss strategy before playing. Another set of groups had thirty minutes for electronic interaction. The groups that met in person cooperated well and earned more money. The groups that had only connected electronically fell apart, as members put their personal gains ahead of the group’s needs. This finding resonates well with many other experiments, which have shown that face-to-face contact leads to more trust, generosity, and cooperation than any other sort of interaction.
The very first experiment in social psychology was conducted by a University of Indiana psychologist who was also an avid bicyclist. He noted that “racing men” believe that “the value of a pace,” or competitor, shaves twenty to thirty seconds off the time of a mile. To rigorously test the value of human proximity, he got forty children to compete at spinning fishing reels to pull a cable. In all cases, the kids were supposed to go as fast as they could, but most of them, especially the slower ones, were much quicker when they were paired with another child. Modern statistical evidence finds that young professionals today work longer hours if they live in a metropolitan area with plenty of competitors in their own occupational niche.
Supermarket checkouts provide a particularly striking example of the power of proximity. As anyone who has been to a grocery store knows, checkout clerks differ wildly in their speed and competence. In one major chain, clerks with differing abilities are more or less randomly shuffled across shifts, which enabled two economists to look at the impact of productive peers. It turns out that the productivity of average clerks rises substantially when there is a star clerk working on their shift, and those same average clerks get worse when their shift is filled with below-average clerks.
Statistical evidence also suggests that electronic interactions and face-to-face interactions support one another; in the language of economics, they’re complements rather than substitutes. Telephone calls are disproportionately made among people who are geographically close, presumably because face-to-face relationships increase the demand for talking over the phone. And when countries become more urban, they engage in more electronic communications. "

Edward L. Glaeser , Triumph of the City: How Our Greatest Invention Makes Us Richer, Smarter, Greener, Healthier and Happier

5 " The case of a patient with dissociative identity disorder follows:Cindy, a 24-year-old woman, was transferred to the psychiatry service to facilitate community placement. Over the years, she had received many different diagnoses, including schizophrenia, borderline personality disorder, schizoaffective disorder, and bipolar disorder. Dissociative identity disorder was her current diagnosis.Cindy had been well until 3 years before admission, when she developed depression, " voices," multiple somatic complaints, periods of amnesia, and wrist cutting. Her family and friends considered her a pathological liar because she would do or say things that she would later deny. Chronic depression and recurrent suicidal behavior led to frequent hospitalizations. Cindy had trials of antipsychotics, antidepressants, mood stabilizers, and anxiolytics, all without benefit. Her condition continued to worsen.Cindy was a petite, neatly groomed woman who cooperated well with the treatment team. She reported having nine distinct alters that ranged in age from 2 to 48 years; two were masculine. Cindy’s main concern was her inability to control the switches among her alters, which made her feel out of control. She reported having been sexually abused by her father as a child and described visual hallucinations of him threatening her with a knife. We were unable to confirm the history of sexual abuse but thought it likely, based on what we knew of her chaotic early home life.Nursing staff observed several episodes in which Cindy switched to a troublesome alter. Her voice would change in inflection and tone, becoming childlike as ]oy, an 8-year-old alter, took control. Arrangements were made for individual psychotherapy and Cindy was discharged.At a follow-up 3 years later, Cindy still had many alters but was functioning better, had fewer switches, and lived independently. She continued to see a therapist weekly and hoped to one day integrate her many alters. "