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Study Counters Notion of “Emotional” Female Brain

Researchers from the Rosalind Franklin University of Medicine and Science in Illinois found that the hippocampus, a crucial part of the brain that consolidates new memories and helps connect emotions to the senses, is not larger in females than in males.

“Sex differences in the brain are irresistible to those looking to explain stereotypic differences between men and women,” said neuroscientist Dr. Lise Eliot of the university’s medical school.

“They often make a big splash, in spite of being based on small samples. But as we explore multiple datasets and are able to coalesce very large samples of males and females, we find these differences often disappear or are trivial.”

For the study, Eliot and a team of students performed a meta-analysis of structural MRI volumes and found no significant difference in hippocampal size between men and women.

Meta-analysis is a statistical technique that allows researchers to combine the findings from many independent studies into a comprehensive review. The team examined findings from 76 published papers, involving more than 6,000 healthy individuals.

The hippocampi are located on both sides of the brain, under the cerebral cortex. The team’s findings challenge the common claim that a disproportionately larger hippocampus explains females’ tendency toward greater emotional expressiveness, stronger interpersonal skills, and better verbal memory.

“Many people believe there is such a thing as a ‘male brain’ and a ‘female brain,'” Eliot said. “But when you look beyond the popularized studies — at collections of all the data — you often find that the differences are minimal.”

The study appears in the journal NeuroImage.

Additional meta-analyses by other investigators have also disproved other purported sex differences in the brain, Eliot noted. There is no difference in the size of the corpus callosum, the white matter that allows the two sides of the brain to communicate, she said. Nor do men and women differ in the way their left and right hemispheres process language.

Source: Rosalind Franklin University/EurekAlert

Study Counters Notion of “Emotional” Female Brain

Rick Nauert PhD

Rick Nauert, PhDDr. Rick Nauert has over 25 years experience in clinical, administrative and academic healthcare. He is currently an associate professor for Rocky Mountain University of Health Professionals doctoral program in health promotion and wellness. Dr. Nauert began his career as a clinical physical therapist and served as a regional manager for a publicly traded multidisciplinary rehabilitation agency for 12 years. He has masters degrees in health-fitness management and healthcare administration and a doctoral degree from The University of Texas at Austin focused on health care informatics, health administration, health education and health policy. His research efforts included the area of telehealth with a specialty in disease management.

APA Reference
Nauert PhD, R. (2015). Study Counters Notion of “Emotional” Female Brain. Psych Central. Retrieved on June 21, 2018, from https://psychcentral.com/news/2015/11/02/malefemale-brain-very-similar/94312.html

 

Scientifically Reviewed
Last updated: 2 Nov 2015
Last reviewed: By John M. Grohol, Psy.D. on 2 Nov 2015
Published on PsychCentral.com. All rights reserved.