"A...psychologist who is best known for his studies of socially deprived monkeys, Carlson...found familiar “the muteness, blank facial expressions, social withdrawal, and bizarre stereotypic movements of these infants.” These behaviors “bore a strong resemblance” to the types of reactions that Carlson had seen in socially deprived monkeys and chimpanzees"
"Even short bursts of touch—as little as fifteen minutes in the evening, in one of her studies—not only enhance growth and weight gain in children but also lead to emotional, physical, and cognitive improvements in adults. "
"...in 1928, John B. Watson, one of the originators of the behaviorist school of psychology, urged parents to maintain a physical boundary between themselves and their children: “Never hug and kiss them, never let them sit on your lap. If you must, kiss them once on the forehead when they say goodnight. Shake hands with them in the morning. Give them a pat on the head if they have made an extraordinarily good job on a difficult task.” Watson acknowledged that children must be bathed, clothed, and cared for, but he believed that excessive touching—that is, caressing—would create “mawkish” adults."
"Touch itself appears to stimulate our bodies to react in very specific ways. The right kind can lower blood pressure, heart rate, and cortisol levels, stimulate the hippocampus (an area of the brain that is central to memory), and drive the release of a host of hormones and neuropeptides that have been linked to positive and uplifting emotions." (Tiffany Field, head of Touch Research Institute at the University of Miami’s Miller School of Medicine)
"And yet touch is rarely purely physical. Field’s more recent work has shown that the brain is very good at distinguishing an emotional touch from a similar, but non-emotional, one... A recent study shows that we can identify other people’s basic emotions based on how they touch us, even when they are separated from us by a curtain. And the emotions that are communicated by touch can go on to shape our behavior. "