“Up until about five years ago, the study of human emotion had been anchored to the face and the voice. We haven't fully studied other types of communication.”

Body Language

Our appearances and actions often say more about our feelings than our words. Even the smallest gesture — such as a head-tilt or a smile — can reveal a lot, according to social psychologist Dacher Keltner, PhD.

“The body is a powerful tool for communication,” says Keltner, a professor and founding faculty director of the Greater Good Science Center at the University of California, Berkeley. “When we measure gestures scientifically by coding facial expression, vocalization or patterns of touch, we get this remarkably faithful assessment of who a person is and what they’re feeling.”

Intimacy Revealed

Keltner and his colleagues measure nonverbal communication by analyzing people’s facial expressions to assess what they are feeling.

“We wondered if people reveal emotions such as sexual desire or long-term love in little changes in facial appearances,” adds Keltner. “We had romantic partners come into the lab and recorded them talking about how they fell in love, and then we gathered data from them about how much they loved each other, whether they felt sexually attracted to each other, whether they were committed.” 

Keltner then compared his data with nonverbal communication cues in the nonhuman primate world where partners lick and pucker their lips before copulation. 

“Lo and behold, little half-second bursts of lip puckers and lip licks in our human subjects correlated with feeling sexually attracted and being happy sexually,” he continues. “In contrast, in the primate world, tender warmth is signaled by head tilts and open-handed gestures and warm smiles, and sure enough, in our human couples, we found that little one-second bursts of those behaviors correlated with feeling love, wanting to get married and talking about a long-term life together.”

The Power of Touch

Beyond facial expression analysis, Keltner’s research also shows that emotion can be communicated through touch. 

To find out how much, Keltner and colleagues brought people into a lab and removed their ability to see or hear each other. They then had the subjects try to communicate different emotions just by a touch to the forearm.

According to Keltner, the team learned a lot about emotion by analyzing small touches between the research subjects. The individuals in the study were able to send and receive emotions like anger, fear and disgust via one-second touches. Feelings of sympathy, gratitude and love were also made clear through touch. 

“We’re now learning that physicians are taking the science of compassion and gratitude and touch and learning how to be more empathetic doctors,” Keltner says. “This is important because new findings show that the more patients feel a compassionate connection to their doctors, the longer they live in the face of disease.” 

Other work is showing that touch calms stress-related physiology in rat pups, and that it’s good for their immune systems. 

“I see enormous hope in where this science will go in shaping our society,” says Keltner.

Social Psychology

Social psychologists are interested in all aspects of personality and social interaction, exploring the influence of interpersonal, intergroup and intragroup relationships on human behavior.

Learn more about the science of social psychology

For Students

Social psychologists study how a person’s life is shaped by interactions with other people.

Resources for StudentsResources to help you pursue a career in psychology
A degree in psychology can lead to a fulfilling career that makes a difference in people’s lives.
  


Pursuing a Career in Social PsychologyFind out what it takes to become a social psychologist
Social psychologists are interested in all aspects of personality and social interaction, exploring the influence of interpersonal and group relationships on human behavior.

For Teachers

An advanced degree in psychology is the foundation of many interesting career paths within the discipline. In addition, an understanding of the science of psychology — for example, by earning a bachelor’s degree in the subject — can help students in their careers and their lives.

Resources for TeachersExplore classroom resources
Understanding the science of psychology can help students in their careers and their lives. Psychological science is the foundation of many interesting career paths.
  


Psychology Can Take You Great PlacesLearn what it takes to pursue a career in psychology
You don’t have to look far to see the impact that psychologists make. They contribute in almost every profession, from health care and law enforcement to sport performance and space exploration.

For School Counselors

Students interested in using science to better understand personality and interpersonal relationships and apply research findings to improve interactions among people might be interested in a career in social psychology. Social psychology can be applied to issues as wide-ranging as prejudice, romantic attraction, persuasion, friendship, conformity and group interaction.

Resources for CounselorsResources to help your students pursue a career in psychology
A degree in psychology can lead to a fulfilling career that makes a difference in people’s lives.
  


Pursuing a Career in Social PsychologyFind out what it takes to become a social psychologist
Social psychologists are interested in all aspects of personality and social interaction, exploring the influence of interpersonal and group relationships on human behavior.