02 SEP 2016 by ideonexus
How Brains Respond to Positive/Negative Feedback in Child...
In children up to eight or nine years old, the dopamine-modulating reward center in the nucleus accumbens reacts strongly to positive feedback (activating the prefrontal cortex) and minimally to negative feedback. In older children, increased activation still occurs in the PFC when dopamine is released in response to positive feedback (particularly in response to correct answers/ predictions). However, the greatest age-related change is the higher reactivity of the NAc to negative feedback an...09 AUG 2014 by ideonexus
Brain Differences Between Sciences and Humanities
The areas of academic interest (sciences or humanities) and area of study have been known to be associated with a number of factors associated with autistic traits. However, despite the vast amount of literature on the psychological and physiological characteristics associated with faculty membership, brain structural characteristics associated with faculty membership have never been investigated directly. In this study, we used voxel-based morphometry to investigate differences in regional g...27 DEC 2013 by ideonexus
The Upstairs and Downstairs Brain
Our amygdala (pronounced uh-MIG-duh-luh) is about the size and shape of an almond and is part of the limbic area, which resides in the downstairs brain. The amygdala’s job is to quickly process and express emotions, especially anger and fear. This little mass of gray matter is the watchdog of the brain, remaining always alert for times we might be threatened. When it does sense danger, it can completely take over, or hijack, the upstairs brain. That’s what allows us to act before we think...Our instinctive, more primitive brain overrides our logical, more advanced from time to time. Children are even more prone to it.
24 MAR 2013 by ideonexus
Attentive States of Mind
Whether you think of it as a sin, a temptation, a lazy habit of mind, or a medical condition, the phenomenon begs the same question: why is it so damn hard to pay attention? It’s not necessarily our fault. As neurologist Marcus Raichle learned after decades of looking at the brain, our minds are wired to wander. Wandering is their default. Whenever our thoughts are suspended between specific, discrete, goal-directed activities, the brain reverts to a so-called baseline, “resting” state...Folksonomies: attention mindfulness
Folksonomies: attention mindfulness
Why is it so hard to maintain? The brain has a default "resting" state of inattetiveness, multitasking confuses our attentiveness.