Researcher investigates the science behind love

January 20, 2017 by Jami Hirsch, University of Missouri-St. Louis
Psychology Professor Sandra Langeslag, who is originally from Holland, came to UMSL in 2014. She runs the Neurocognition of Emotion and Motivation lab on campus, where she guides both undergraduate and graduate students through research pursuits that focus largely on cognition’s relationship to love. Credit: August Jennewein

When University of Missouri–St. Louis psychology faculty member Sandra Langeslag tells people that she researches love, the reactions she gets are mixed.

Students immediately lean in. Fellow professors, researchers and even small-talking strangers are intrigued.

Journal editors are contradictory. Funding providers can be skeptical.

"I get totally polarized responses," Langeslag says with a smile from her fourth-floor office in Stadler hall. "People either it or they hate it and think I'm crazy."

Why such strong responses?

Everybody has something to say – and plenty of preconceived notions – about the nearly universal experience of love.

And now everyone has something to say about the professor of psychology's research.

A study she published in August in conjunction with Erasmus University Rotterdam's Jan Van Strien has caught the eye of several news and media publications including The Wall Street Journal, The Huffington Post Canada, Cosmopolitan UK and more.

Put very briefly, the study investigates the concept of love regulation by looking at how cognition affects love. In other words, it asks: Can a person change how in love they are just by thinking? Can thinking positive thoughts about one's beloved (he's so smart, kind and good) make positive feelings of love increase? And likewise: Can thinking negative thoughts (she's always messy, we have no future together) make love feelings decrease?

The data Langeslag has collected, a combination of measurable participant responses and brainwave analysis, points to an affirmative answer to all of these questions.

Yes. Love – a feeling many people say they simply can't control – might just be controllable after all.

Why is this so exciting?

There are several instances in life when being able to change one's feelings of love might be useful and even beneficial for emotional health and well-being.

"Imagine if you love someone who doesn't love you back," Langeslag offers as one example. "Or maybe you are happily married and now you develop this crush on someone else, but you don't want to develop this crush because your marriage is good."

The opposite can be true as well.

"There are also situations where people may be less in love than they want to be," she further explains. "We know that in long-term relationships love feelings can decline over time, and that can cause breakups or divorces where people say things like, 'We don't hate each other and no one cheated, but we're just not in love anymore.'"

Langeslag clarifies that while the results are definitely intriguing, they aren't as simple as they may first seem.

"It's not like we have an on or off switch and you think about negative things and now you're not in love at all anymore."

The effects, she says, at least in this initial study, appear to be smaller and more temporary than that. But what if they weren't?

Here at UMSL, through her Neurocognition of Emotion and Motivation Lab, Langeslag and her students are busy investigating that question and many more.

They examine how love improves cognition.

"In my previous work," Langeslag explains, "I've shown that people have more attention for any information that has to do with their beloved. For example, if your beloved is a fan of Brad Pitt, now you will notice movie posters with Brad Pitt on them even though you don't care about Brad Pitt. People remember stuff that has to do with their beloved more than with someone else."

And they study the reverse – how love harms cognition.

"Think of people who say, 'I just can't focus on my work or my homework. I'm thinking about this person all of the time.' Does that increased cognition about things that have to do with one's beloved come at a cost? Does it make you worse at tasks you should be doing?"

The potential real-world application of such inquiries is part of what encouraged Langeslag to make love her main research focus in the first place, back when she was an undergraduate student herself.

Indeed, it's also part of what drew her to her field of biopsychology – a specialty area under the broader banner of psychology in which biology – hormones, chemicals, neurological processes and the like – inform and intersect with the study of human behavior.

It's a discipline that many people don't know exists.

In fact, Langeslag says she used to be one of those people.

She tells a story of going to another university's version of UMSL Day, back before she started her undergraduate studies. Her friend was interested in psychology, and so she found herself surrounded by information about programs and options for study. She picked up a biopsychology book and things began to click.

"I was like, 'Hold on. Is that a thing?'" she says with a laugh. "I went through this textbook and I realized it was about the brain, and hormones and everything, and I was like, 'Well that's it. That's what I need to do.'"

Langeslag says that now, in the classes she teaches on human learning and memory and emotions and the brain, students are also excited by those same intersections, as well as the moments when research connects to lived experience.

"We discuss the research in class, and the studies often point to, 'Oh yeah, I do that too,' or, 'Oh yeah, I feel that too,'" she says. "So it's applicable. It's meaningful in a tangible way. That's exciting."

Students who are interested in getting in on that excitement – and learning more about the science behind love – should note that Langeslag's NEM lab is currently recruiting both researchers and participants for further studies. In fact, her lab members are organizing a scientific speed dating event at UMSL which will take place on Feb. 9. The event will share information about the lab and its research alongside opportunities for students to meet and mingle. For more information, send an email to

Explore further: What does love look like?

More information: Sandra J. E. Langeslag et al. Regulation of Romantic Love Feelings: Preconceptions, Strategies, and Feasibility, PLOS ONE (2016). DOI: 10.1371/journal.pone.0161087

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1 / 5 (1) Jan 21, 2017
Pheromones compel associations. Exocrinology the Science of Love. Moreover, manipulations of the pheromones and pheromone receptivity responsible (tears hold dissolved proteins that recognize human pheromones) allows recovery from some pretty nasty medical pathology: ADHD, criminal behavior, borderlines, OCD, sexual perversions, even heroin, cocaine, and oxycodone addictions uncomplicated by alcoholism. All these pathological biological problem behaviors can be cured with 250mg of healthy adult male facial skin surface lipid pheromone taken by mouth.
Bad thinking does not cause disease.
not rated yet Jan 21, 2017
People can Love any person (living or dead) in any relationship form (family, like parents, children and siblings; colleagues; famous or respected figures; religious figures etc) any object or object class, any activity (eg sport, career, entertainment etc), the self, ideas and so on. Intense love to the point of obsession can occur with any of the above but are not usually described as being 'In Love' or as Limerence even though the mechanism is identical.

The common thread, apart from some core mix of emotions, is the incorporation of the object of love into an individual's life in such a way that a person feels incomplete without it, hate being the opposite in that something is rejected and removed from a person's life. Consciously, humans extend the 'self' beyond the body, mind or personal emotion and Love/Hate is the boson that allows this extension of the self image to occur.
not rated yet Jan 21, 2017
The form of Love this person is studying is called 'Limerence'.

Love has emotion, compulsion, feeling, attitude, motivation, and behavioural dimensions (among others) and researchers tend to focus in on just one of them, or just one property of love, and then define Love by the property they are interested in. For instance 'the desire for proximity', a more intense manifestation of 'liking' something or someone, the desire for sex, and 'the evolutionarily evolved compulsion that preserves the species' are each used to define Love by some scientific discipline or other.

The above researcher is focusing in on the intense love between couples described as 'being IN Love' and so is a particular subcategory of love between individuals...cont below...
5 / 5 (1) Jan 21, 2017
Sorry is that a hicky on her neck? Uh never mind.

A male seeks to mate with as many females as possible to ensure that his genes survive to the next gen. A female however has a lot more invested in each pregnancy and so seeks to mate with the highest quality male she can find.

This makes 'love' different for males and females.
1 / 5 (1) Jan 22, 2017
Pheromones blah, blah, blah

Hey Bubba - I'm still waiting for you to cite other authors peer-reviewed research papers in scientific journals that support your extraordinary claims. All that you have provided previously is a link to a self-penned, self-posted effort on Elsevier's Medical Hypotheses forum. I accept that you believe your hypothesis; does anyone scientifically credible share that belief? If so, details please.

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