Posts tagged love
Articles and news from the latest research reports.
Eye movements reveal difference between love and lust
Soul singer Betty Everett once proclaimed, “If you want to know if he loves you so, it’s in his kiss.” But a new study by University of Chicago researchers suggests the difference between love and lust might be in the eyes after all.
Specifically, where your date looks at you could indicate whether love or lust is in the cards. The new study found that eye patterns concentrate on a stranger’s face if the viewer sees that person as a potential partner in romantic love, but the viewer gazes more at the other person’s body if he or she is feeling sexual desire. That automatic judgment can occur in as little as half a second, producing different gaze patterns.
“Although little is currently known about the science of love at first sight or how people fall in love, these patterns of response provide the first clues regarding how automatic attentional processes, such as eye gaze, may differentiate feelings of love from feelings of desire toward strangers,” noted lead author Stephanie Cacioppo, director of the UChicago High-Performance Electrical NeuroImaging Laboratory. Cacioppo co-authored the report, now published online in the journal Psychological Science, with colleagues from UChicago’s Departments of Psychiatry and Psychology, and the University of Geneva.
Previous research by Cacioppo has shown that different networks of brain regions are activated by love and sexual desire. In this study, the team performed two experiments to test visual patterns in an effort to assess two different emotional and cognitive states that are often difficult to disentangle from one another—romantic love and sexual desire (lust).
Male and female students from the University of Geneva viewed a series of black-and-white photographs of persons they had never met. In part one of the study, participants viewed photos of young, adult heterosexual couples who were looking at or interacting with each other. In part two, participants viewed photographs of attractive individuals of the opposite sex who were looking directly at the camera/viewer. None of the photos contained nudity or erotic images.
In both experiments, participants were placed before a computer and asked to look at different blocks of photographs and decide as rapidly and precisely as possible whether they perceived each photograph or the persons in the photograph as eliciting feelings of sexual desire or romantic love. The study found no significant difference in the time it took subjects to identify romantic love versus sexual desire, which shows how quickly the brain can process both emotions, the researchers believe.
But analysis of the eye-tracking data from the two studies revealed marked differences in eye movement patterns, depending on whether the subjects reported feeling sexual desire or romantic love. People tended to visually fixate on the face, especially when they said an image elicited a feeling of romantic love. However, with images that evoked sexual desire, the subjects’ eyes moved from the face to fixate on the rest of the body. The effect was found for male and female participants.
“By identifying eye patterns that are specific to love-related stimuli, the study may contribute to the development of a biomarker that differentiates feelings of romantic love versus sexual desire,” said co-author John Cacioppo, the Tiffany and Margaret Blake Distinguished Service Professor and director of the Center for Cognitive and Social Neuroscience. “An eye-tracking paradigm may eventually offer a new avenue of diagnosis in clinicians’ daily practice or for routine clinical exams in psychiatry and/or couple therapy.”
![Researchers find brain’s ‘sweet spot’ for love in neurological patient
A region deep inside the brain controls how quickly people make decisions about love, according to new research at the University of Chicago.
The finding, made in an examination of a 48-year-old man who suffered a stroke, provides the first causal clinical evidence that an area of the brain called the anterior insula “plays an instrumental role in love,” said UChicago neuroscientist Stephanie Cacioppo, lead author of the study.
In an earlier paper that analyzed research on the topic, Cacioppo and colleagues defined love as “an intentional state for intense [and long-term] longing for union with another” while lust, or sexual desire, is characterized by an intentional state for a short-term, pleasurable goal.
In this study, the patient made decisions normally about lust but showed slower reaction times when making decisions about love, in contrast to neurologically typical participants matched on age, gender and ethnicity. The findings are presented in a paper, “Selective Decision-Making Deficit in Love Following Damage to the Anterior Insula,” published in the journal Current Trends in Neurology.
“This distinction has been interpreted to mean that desire is a relatively concrete representation of sensory experiences, while love is a more abstract representation of those experiences,” said Cacioppo, a research associate and assistant professor in psychology. The new data suggest that the posterior insula, which affects sensation and motor control, is implicated in feelings of lust or desire, while the anterior insula has a role in the more abstract representations involved in love.
In the earlier paper, “The Common Neural Bases Between Sexual Desire and Love: A Multilevel Kernel Density fMRI Analysis,” Cacioppo and colleagues examined a number of studies of brain scans that looked at differences between love and lust.
The studies showed consistently that the anterior insula was associated with love, and the posterior insula was associated with lust. However, as in all fMRI studies, the findings were correlational.
“We reasoned that if the anterior insula was the origin of the love response, we would find evidence for that in brain scans of someone whose anterior insula was damaged,” she said.
In the study, researchers examined a 48-year-old heterosexual male in Argentina, who had suffered a stroke that damaged the function of his anterior insula. He was matched with a control group of seven Argentinian heterosexual men of the same age who had healthy anterior insula.
The patient and the control group were shown 40 photographs at random of attractive, young women dressed in appealing, short and long dresses and asked whether these women were objects of sexual desire or love. The patient with the damaged anterior insula showed a much slower response when asked if the women in the photos could be objects of love.
“The current work makes it possible to disentangle love from other biological drives,” the authors wrote. Such studies also could help researchers examine feelings of love by studying neurological activity rather than subjective questionnaires.](http://41.media.tumblr.com/2d1eddcf4879fd3a371f4da4e8485254/tumblr_n11o2503cE1rog5d1o1_500.jpg)
Researchers find brain’s ‘sweet spot’ for love in neurological patient
A region deep inside the brain controls how quickly people make decisions about love, according to new research at the University of Chicago.
The finding, made in an examination of a 48-year-old man who suffered a stroke, provides the first causal clinical evidence that an area of the brain called the anterior insula “plays an instrumental role in love,” said UChicago neuroscientist Stephanie Cacioppo, lead author of the study.
In an earlier paper that analyzed research on the topic, Cacioppo and colleagues defined love as “an intentional state for intense [and long-term] longing for union with another” while lust, or sexual desire, is characterized by an intentional state for a short-term, pleasurable goal.
In this study, the patient made decisions normally about lust but showed slower reaction times when making decisions about love, in contrast to neurologically typical participants matched on age, gender and ethnicity. The findings are presented in a paper, “Selective Decision-Making Deficit in Love Following Damage to the Anterior Insula,” published in the journal Current Trends in Neurology.
“This distinction has been interpreted to mean that desire is a relatively concrete representation of sensory experiences, while love is a more abstract representation of those experiences,” said Cacioppo, a research associate and assistant professor in psychology. The new data suggest that the posterior insula, which affects sensation and motor control, is implicated in feelings of lust or desire, while the anterior insula has a role in the more abstract representations involved in love.
In the earlier paper, “The Common Neural Bases Between Sexual Desire and Love: A Multilevel Kernel Density fMRI Analysis,” Cacioppo and colleagues examined a number of studies of brain scans that looked at differences between love and lust.
The studies showed consistently that the anterior insula was associated with love, and the posterior insula was associated with lust. However, as in all fMRI studies, the findings were correlational.
“We reasoned that if the anterior insula was the origin of the love response, we would find evidence for that in brain scans of someone whose anterior insula was damaged,” she said.
In the study, researchers examined a 48-year-old heterosexual male in Argentina, who had suffered a stroke that damaged the function of his anterior insula. He was matched with a control group of seven Argentinian heterosexual men of the same age who had healthy anterior insula.
The patient and the control group were shown 40 photographs at random of attractive, young women dressed in appealing, short and long dresses and asked whether these women were objects of sexual desire or love. The patient with the damaged anterior insula showed a much slower response when asked if the women in the photos could be objects of love.
“The current work makes it possible to disentangle love from other biological drives,” the authors wrote. Such studies also could help researchers examine feelings of love by studying neurological activity rather than subjective questionnaires.
The Science of Love
It turns out the brain in love looks strikingly similar to one on drugs like cocaine! Find out what drives love, and why we simply love being in love.
Written and created by Mitchell Moffit (twitter @mitchellmoffit) and Gregory Brown (twitter @whalewatchmeplz).
Secrets of lasting love are hidden inside the brain
Researchers have found that they can spot the signs of a true romance in people embarking on a new relationship by looking at how much their brains light up when they think about their new partner.
The scientists detected distinctive patterns of electrical activity in the brains of volunteers who believed they had recently fallen in love, and found that they could use the scans to predict whether a couple would stay together.
The findings could end the uncertainty of courting by revealing whether a couple are likely to have a long relationship or whether their feelings will fizzle out.
The scans showed that even if someone believed they had fallen in love, the activity of their neurons could suggest whether their feelings were strong enough for them to be with the other person three years later.
Prof Arthur Aron, a social psychologist at Stony Brook University in Long Island, New York, said: “All of those involved in the study felt very intensely in love with their partner and this was reflected in their scans, but there were some subtle indicators that showed how stable those feeling were.
“If that strong feeling was combined with signs that they could regulate emotions, to see the partner positively and deal with conflict, then it seems to be really productive in staying with the person.” The psychologists, whose research was published in the journal Neuroscience Letters, found a number of key parts of the brain were involved.
Using magnetic resonance imaging, the scientists scanned 12 volunteers, seven of whom were women, who had fallen passionately in love and had been with their partner for about a year. As they were scanned, each was shown a picture of their partner and asked to think of memories of them. The participants were also asked to think about and look at pictures of an acquaintance with whom they had no romantic attachment. Three years later, the researchers compared the scans with the outcome of each relationship. Half the relationships had lasted.
The scientists found that the scans of those who were still in relationships had heightened levels of activity, when thinking of their partner, in an area of the brain that produces emotional responses to visual beauty, known as the caudate tail.
These people also had lower levels of activity in the pleasure centres of the brain that relate to addiction and seeking rewards. The scientists say deactivation in this area has been linked to satiety and satisfaction.
Another part of the brain, known as the medial orbitofrontal cortex, was also less active, which the scientists say made those people less critical and judgmental about their partners.
Aron said the research could have a practical application in helping people having relationship problems.
He said: “The brain is so complex that we are still quite a way from being able to very precisely pick out these qualities, but it does allow us to get at what is really going on inside someone aside from what they tell us.
“We may eventually get to a point where we can recognise things that the person doesn’t recognise themselves and we can say that they are not as intensely attached to a person as they think they are.”
Prof Aron added: “This probably facilitates handling the conflicts that inevitably arise when you spend a lot of time with someone. It plays a big part in keeping people together and staying satisfied.”
A fourth area known to modulate mood and self-esteem was less active in those who stayed together, something the scientists think may be linked to people forming stable and intimate bonds.
The psychologists also found they could spot signs of how happy a couple who stayed together would be in the scans taken three years earlier.
Xiaomeng Xu, the lead author of the study at Brown University in Rhode Island, said: “Factors present early in the early stages of romantic love seem to play a major role in the development and longevity of the relationship.
“Our data provides preliminary evidence that neural responses in the early stages of romantic love can predict relationship stability and quality up to 40 months later.
“The brain regions involved suggest that reward functions may be predictive for relationship stability.”
Men and women can now thank a dozen brain regions for their romantic fervor. Researchers have revealed the fonts of desire by comparing functional MRI studies of people who indicated they were experiencing passionate love, maternal love or unconditional love. Together, the regions release neurotransmitters and other chemicals in the brain and blood that prompt greater euphoric sensations such as attraction and pleasure. Conversely, psychiatrists might someday help individuals who become dangerously depressed after a heartbreak by adjusting those chemicals.
Passion also heightens several cognitive functions, as the brain regions and chemicals surge. “It’s all about how that network interacts,” says Stephanie Ortigue, an assistant professor of psychology at Syracuse University, who led the study. The cognitive functions, in turn, “are triggers that fully activate the love network.”
(Graphics by James W. Lewis, West Virginia University (brain), and Jen Christiansen)
The Love Competition from Brent Hoff on Vimeo.
Is it possible for one person to love more than another? In an attempt to find out, filmmaker Brent Hoff teamed with Stanford University neuroscientists to test lovers’ abilities, using an fMRI to monitor brain activity and measure whose adoration was the strongest.