Emotions

What makes some people more prone to wedded bliss or sorrow than others? Researchers at UC Berkeley and Northwestern University have found a major clue in our DNA. A gene involved in the regulation of serotonin can predict how much our emotions affect our relationships, according to a new study that may be the first to link genetics, emotions, and marital satisfaction. The study was conducted at UC Berkeley

“An enduring mystery is, what makes one spouse so attuned to the emotional climate in a marriage, and another so oblivious?” said UC Berkeley psychologist Robert W. Levenson, senior author of the study published online today (Oct. 7) in the journal Emotion. “With these new genetic findings, we now understand much more about what determines just how important emotions are for different people.”

older romantic couple

iStockphoto © Abel Mitja Varela

Specifically, researchers found a link between relationship fulfillment and a gene variant, or “allele,” known as 5-HTTLPR. All humans inherit a copy of this gene variant from each parent. Study participants with two short 5-HTTLPR alleles were found to be most unhappy in their marriages when there was a lot of negative emotion, such as anger and contempt, and most happy when there was positive emotion, such as humor and affection. By contrast, those with one or two long alleles were far less bothered by the emotional tenor of their marriages.

“We are always trying to understand the recipe for a good relationship, and emotion keeps coming up as an important ingredient,” said Levenson, who heads up a longitudinal study that has tracked over 150 married couples for more than 20 years.

The new findings don’t mean that couples with different variations of 5-HTTLPR are incompatible, the researchers note. Instead, it suggests that those with two short alleles are likelier to thrive in a good relationship and suffer in a bad one. The results of the study, which looked at the genotypes of more than 100 spouses and observed how they interacted with their partners over time, bore this out, they said.

“Individuals with two short alleles of the gene variant may be like hothouse flowers, blossoming in a marriage when the emotional climate is good and withering when it is bad,” said Claudia M. Haase, assistant professor of human development and social policy at Northwestern University and lead author of the study, which she conducted as a postdoctoral fellow at UC Berkeley. “Conversely, people with one or two long alleles are less sensitive to the emotional climate.”

“Neither of these genetic variants is inherently good or bad,” Haase added. “Each has its advantages and disadvantages.”

Participants in the study belong to a group of 156 middle-aged and older couples whose relationships Levenson and fellow researchers have followed since 1989. Every five years, the couples have come to UC Berkeley to report on their marital satisfaction and interact with one another in a lab setting while researchers code their conversations based on facial expressions, body language, tone of voice and topic of discussion.

More recently, 125 of the study participants provided DNA samples, and researchers matched their genotypes with their levels of marital satisfaction and the emotional tenor of their interactions in the lab setting.

For spouses with two short 5-HTTLPR alleles, who made up 17 percent of the spouses studied, researchers found a strong correlation between the emotional tone of their conversations and how they felt about their marriage. For the 83 percent of spouses with one or two long alleles, on the other hand, the emotional quality of their discussions bore little or no relation to their marital satisfaction over the next decade.

The link between genes, emotion and marital satisfaction was particularly pronounced for older adults. “One explanation for this latter finding is that in late life – just as in early childhood – we are maximally susceptible to the influences of our genes,” Levenson said.

Berkley University of California

Brain Anatomy 1908 Edwardian Vintage Medical Chart ~ Etsy

Brain Anatomy 1908 Edwardian Vintage Medical Chart ~ Etsy

Different brain areas are activated when we choose to suppress an emotion, compared to when we are instructed to inhibit an emotion, according a new study from the UCL Institute of Cognitive Neuroscience and Ghent University.

In this study, published in Brain Structure and Function, the researchers scanned the brains of healthy participants and found that key brain systems were activated when choosing for oneself to suppress an emotion. They had previously linked this brain area to deciding to inhibit movement.

“This result shows that emotional self-control involves a quite different brain system from simply being told how to respond emotionally,” said lead author Dr Simone Kuhn (Ghent University).

In most previous studies, participants were instructed to feel or inhibit an emotional response. However, in everyday life we are rarely told to suppress our emotions, and usually have to decide ourselves whether to feel or control our emotions.

In this new study the researchers showed fifteen healthy women unpleasant or frightening pictures. The participants were given a choice to feel the emotion elicited by the image, or alternatively to inhibit the emotion, by distancing themselves through an act of self-control.

The researchers used functional magnetic resonance imaging (fMRI) to scan the brains of the participants. They compared this brain activity to another experiment where the participants were instructed to feel or inhibit their emotions, rather than choose for themselves.

Different parts of the brain were activated in the two situations. When participants decided for themselves to inhibit negative emotions, the scientists found activation in the dorso-medial prefrontal area of the brain. They had previously linked this brain area to deciding to inhibit movement.

In contrast, when participants were instructed by the experimenter to inhibit the emotion, a second, more lateral area was activated.

“We think controlling one’s emotions and controlling one’s behaviour involve overlapping mechanisms,” said Dr Kuhn.

“We should distinguish between voluntary and instructed control of emotions, in the same way as we can distinguish between making up our own mind about what do, versus following instructions.”

Regulating emotions is part of our daily life, and is important for our mental health. For example, many people have to conquer fear of speaking in public, while some professionals such as health-care workers and firemen have to maintain an emotional distance from unpleasant or distressing scenes that occur in their jobs.

Professor Patrick Haggard (UCL Institute of Cognitive Neuroscience) co-author of the paper said the brain mechanism identified in this study could be a potential target for therapies.

“The ability to manage one’s own emotions is affected in many mental health conditions, so identifying this mechanism opens interesting possibilities for future research.

“Most studies of emotion processing in the brain simply assume that people passively receive emotional stimuli, and automatically feel the corresponding emotion. In contrast, the area we have identified may contribute to some individuals’ ability to rise above particular emotional situations.

“This kind of self-control mechanism may have positive aspects, for example making people less vulnerable to excessive emotion. But altered function of this brain area could also potentially lead to difficulties in responding appropriately to emotional situations.”

University College of London

depressed woman

Clinically depressed people have a hard time telling the difference between negative emotions such as anger and guilt, a new University of Michigan study found.

© iStockphoto

“It is difficult to improve your life without knowing whether you are sad or angry about some aspect of it.” —Emre Demiralp

The ability to distinguish between various emotional experiences affects how individuals deal with life stressors, said Emre Demiralp, a researcher in the U-M Department of Psychology and the lead author of the study recently published in Psychological Science.

Being unable to differentiate certain emotions from each other might lead to a person choosing an action that is not appropriate, thus exacerbating the problem, she said.

“It is difficult to improve your life without knowing whether you are sad or angry about some aspect of it,” Demiralp said. “For example, imagine not having a gauge independently indicating the gasoline level of your car. It would be challenging to know when to stop for gas.

“We wanted to investigate whether people with clinical depression had emotional gauges that were informative and whether they experienced emotions with the same level of specificity and differentiation as healthy people.”

The study involved 106 people ages 18-40, half of whom were diagnosed with clinical depression. Participants carried a Palm Pilot for seven to eight days and recorded their emotions at random times each day.

They indicated how they felt based on seven negative emotions (sad, anxious, angry, frustrated, ashamed, disgusted, guilty) and four positive emotions (happy, excited, alert, active) on a scale from one (not at all) to four (a great deal).

When participants experienced two emotions at the same time, they often found it challenging to distinguish between negative emotions than positive emotions, the study found.

Demiralp said that positive emotions serve as a buffer in coping with negative emotions for depressed people.

creative commons attribution University of Michigan .The study’s other authors were Martin Buschkuehl, Phoebe Ellsworth, Luis Hernandez-Garcia, Patricia Deldin and John Jonides of the University of Michigan; Renee Thompson, Jutta Mata and Ian Gotlib of Stanford University; Susanne Jaeggi of the University of Maryland; Lisa Feldman Barrett of Northeastern University; and Metin Demiralp of Istanbul Technical University.

serena williams close upIn a close-up headshot, Serena Williams’ eyes are pressed tensely closed; her mouth is wide open, teeth bared. Her face looks enraged. Now zoom out: The tennis star is on the court, racket in hand, fist clenched in victory. She’s not angry. She’s ecstatic, having just beaten her sister Venus at the 2008 U.S. Open.

“Humans are exquisitely sensitive to context, and that can vary dramatically shape what is seen in a face,” says psychologist Lisa Feldman Barrett of Northeastern University and Massachusetts General Hospital/Harvard School of Medicine. “Strip away the context, and it is difficult to accurately perceive emotion in a face.” That is the argument of a new paper by Barrett, her graduate student Maria Gendron, and Batja Mesquita of the University of Leuven in Belgium. It appears in October’s Current Directions in Psychological Science, a journal published by the Association for Psychological Science.

Serena Williams wins US OpenThe paper—reviewing a handful of hundreds of studies supporting the authors’ position, says Barrett—refutes the contention that there are six to 10 biologically basic emotions, each encoded in a particular facial arrangement, which can be read easily in an image of a disembodied face by anyone, anywhere.

Facial-emotional perception is influenced by many kinds of contexts, says the paper, including conceptual information and sense stimuli. A scowl can be read as fear if a dangerous situation is described or as disgust if the posture of its body indicates reaction to a soiled object. Eye-tracking experiments show that, depending on the meaning derived from the context, people focus on different salient facial features. Language aids facial perception, as well. Study participants routinely did better naming the emotions in pouting, sneering, or smiling faces when the experimenter supplied words to choose from than when they had to come up with the words themselves. [continue reading…]