Tag

Neuromodulators

All articles tagged with #neuromodulators

"Neurotransmitters Influence Social Behavior in Economic Exchange"

Originally Published 1 year ago — by Nature.com

A study using electrochemistry to measure fast dopamine and serotonin fluctuations in the human brain during the ultimatum game found that overall levels of dopamine, but not serotonin, were higher in response to offers from human avatars compared to computer avatars. Additionally, relative changes in dopamine tracked trial-by-trial changes in offer value, resembling reward prediction error signaling, while relative changes in serotonin tracked the current offer value irrespective of the social context. This research provides insights into the roles of dopamine and serotonin in human social interaction at finer biological scales.

health neuroscience dopamine human-brain neuromodulators neuroscience serotonin social-interaction

Decoding the Energetic Costs and Evolution of Human Intelligence

Originally Published 2 years ago — by PsyPost

A new study published in Science Advances reveals that certain areas of the human brain involved in complex cognitive functions require significantly more energy than others. This challenges the belief that larger brain sizes are solely responsible for our cognitive abilities. The study found a linear relationship between the brain's glucose metabolism and its functional connectivity, with frontoparietal networks responsible for high-level cognitive tasks using up to 67% more energy than areas involved in basic sensory or motor functions. The research also suggests that the development of energy-intensive brain regions, regulated by neuromodulators like dopamine and serotonin, may be crucial to the evolution of human cognition.

health neuroscience cognitive-functions energy-consumption evolution human-brain neuromodulators neuroscience