This review looked at how testosterone affects the default mode network, which is a group of brain regions involved in internal thoughts. The researchers looked at several key areas, including the medial prefrontal cortex and the precuneus. They found that testosterone was linked to changes in these specific spots.
These changes seem to affect how people process information about themselves and their emotions. The findings suggest that testosterone impacts internal feelings and self-identity more than it affects general, outward-facing tasks. This means the hormone may play a role in how we perceive our own roles and feelings.
It is important to note that these results come from a review of many different studies. Because the studies were very different from one another and many did not look at a full range of hormones, it is hard to say for certain how much testosterone alone causes these changes. These findings are currently used to help researchers understand the link between hormones and brain function.
Common questions
What parts of the brain are affected by testosterone?
The review found changes in several key areas of the brain. These include the medial prefrontal cortex, anterior cingulate cortex, precuneus, and angular gyrus. These areas are part of the default mode network and are important for self-referential processing and emotional responses.
Does testosterone affect general thinking or memory?
The findings suggest that the changes linked to testosterone primarily affect internal areas like self-referential processing and emotional reactions. The study did not find that it predominantly affected externally oriented cognition, which involves more general types of thinking.
How certain are these findings about testosterone and the brain?
The evidence is currently limited by the high variety of the studies included in the review. Many studies also did not provide a full profile of other hormones. Because of these factors, it is difficult to make a certain claim about the direct cause of these brain changes.
