Final answer:
The nucleus accumbens is the brain region responsible for positive feelings and impulsivity.
Explanation:
The part of the brain responsible for triggering positive feelings but also underlying impulsivity is the nucleus accumbens. This brain region is part of the mesolimbic dopamine system which is implicated in salience attribution and can lead to abnormal salience attribution, potentially contributing to positive symptomatology. It is interconnected with the amygdala, frontal cortex, and other regions involved in pleasure and desire systems.
Learn more about Nucleus accumbens here:
https://brainly.com/question/36181868
