Tag: Behavioral Science

Birds string together meaningless sounds to make ‘words’

Stringing together meaningless sounds to create meaningful signals is a core feature of human language. Investigating whether animals share this basic combinatorial ability has been complicated by difficulties in identifying whether animal vocalizations are made from smaller, meaningless sounds, or building blocks. New research by scientists at the Universities of Zurich, Exeter, Warwick, Macquarie and

Males of a feather flock together: Behavioral scientists tested biological principle on free-living Assamese macaques

“Birds of a feather flock together” or rather “opposites attract”? The recently published study on male macaques in Thailand speaks for the former: Behavioral biologists from the German Primate Centre — Leibniz Institute for Primate Research and psychologists from the University of Göttingen have observed that the more similar male Assamese macaques are in their

Research advances to better target debilitating effects of cachexia syndrome: Cachexia research advances better target debilitating effects of cancer-related wasting syndrome

A study published in Cell Reports Aug. 6 describes the generation of a new mouse model developed at Hollings Cancer Center that could lead to a better understanding of the cachexia syndrome. This wasting condition, characterized by excessive weight loss, has one of the highest incidence in pancreatic cancer patients. Denis Guttridge, Ph.D., Hollings Cancer

Connecting neurons in the brain

The brain consists of a large collection of interconnected neurons. How complex patterns of neuronal cells grow into functioning circuits during development has fascinated researchers for decades. A team of scientists at VIB and KU Leuven has now uncovered a new signaling mechanism in fruit flies that specifies the formation of neuronal circuits in the

What makes memories stronger? Researchers shed new light on how the brain solidifies important memories

A team of scientists at NeuroElectronics Research Flanders (NERF- empowered by imec, KU Leuven and VIB) found that highly demanding and rewarding experiences result in stronger memories. By studying navigation in rats, the researchers traced back the mechanism behind this selective memory enhancement to so-called replay processes in the hippocampus, the memory-processing center of the

Sexual behavior may influence gut microbiome: Researchers say men who have sex with men have unique microbiomes, may impact immune system

A person’s sexual behavior could affect their microbiome and immune system, potentially elevating their risk of HIV infection, according to a new study from researchers at the University of Colorado Anschutz Medical Campus. The study was published last week in the journal PLOS Pathogens. The microbiome, a community of microbes in the gut, play a

A taste for fat may have made us human

Long before human ancestors began hunting large mammals for meat, a fatty diet provided them with the nutrition to develop bigger brains, posits a new paper in Current Anthropology. The paper argues that our early ancestors acquired a taste for fat by eating marrow scavenged from the skeletal remains of large animals that had been

Scientists uncover brain circuits behind putting up a fight or freezing in place: Study may provide clues to disorders including anxiety and phobias

In a study of mice, National Institutes of Health-funded researchers describe a new circuit involved in fine-tuning the brain’s decision either to hide or confront threats. The study, published in Nature, was partially funded by the NIH’s Brain Research through Advancing Innovative Neurotechnologies (BRAIN) Initiative. “Being able to manipulate specific circuits can uncover surprising relationships

Discovery of differences in the brains of rats classified as workers vs. slackers: Discoveries reveal the brain mechanisms involved in decision-making

A team of researchers led by Dr. Catharine Winstanley at the University of British Columbia have uncovered a network of regions in the brain that are involved in determining the choice of working harder to get a bigger reward, or putting in a lesser effort and receiving a smaller reward. Understanding how the brain makes

Gene variant increases empathy-driven fear in mice

Researchers at the Center for Cognition and Sociality, within the Institute for Basic Science (IBS), have just published in Neuron about a genetic variant that controls and increases empathy-driven fear in mice. As empathy is evolutionarily conserved from rodents to humans, this finding might contribute to clarify individual variability in neuropsychiatric conditions characterized by empathic

Humans and others exposed to prenatal stress have high stress levels after birth

Vertebrate species, including humans, exposed to stress prenatally tend to have higher stress hormones after birth, according to a new Dartmouth-led study published in Scientific Reports. While previous research has reported examples of maternal stress experience predicting offspring stress hormones in different species, this study is the first to empirically demonstrate the impact of prenatal