Some of the same brain mechanisms that fuel drug addiction in humans accompany the emergence of compulsive eating behaviors and the development of obesity in animals, according to research funded by the National Institute on Drug Abuse (NIDA), a component of the National Institutes of Health.
According to research published in the Journal of Personality and Social Psychology, being involved in a romantic relationship reduces levels of testosterone in men, but only if they are committed to monogamy in that relationship.
In 2010, the Journal of Abnormal Psychology published a study that investigated the association between relationship quality and anxiety disorders.
Women are less likely than men to report having experienced love at first sight, although they tend to report having the same number of loves.
The problematic use of mobile phones is associated with addictive personality traits, according to a study published in CyberPsychology & Behavior.
Investigators have found that a state-of-the-art brain imaging method may be useful for detecting and monitoring mild traumatic brain injury, a controversial diagnosis that is based largely on a patient’s subjective experience.
According to research published in Evolutionary Psychology, although students believe that what they desire in a relationship changes as they mature, their actual preference in romantic and sexual partners varies little with age.
In romantic relationships, men are much more likely than women to overestimate the likelihood of their partner’s infidelity. According to an article published in the journal Evolutionary Psychology, this overestimation may be a cognitive bias with an important evolutionary function.
A study from the University of Albany found that the administration of the hormone estradiol to aged female mice decreased anxiety-like and depression-like behaviors. This finding may help explain the onset of depression during and after menopause.
Chronic use of ketamine can lead to cognitive impairments, according to a study published in the journal Addiction.
Facebook use may contribute to feelings of jealousy in romantic relationships, according to research published in the scientific journal CyberPsychology & Behavior.
The study, authored by Gayle Brewer and Charlene Riley, examined 98 heterosexual men, aged 18 to 72, who were currently in a romantic relationship and was published in the journal Evolutionary Psychology in 2009.