GABA can selectively regulate the excitability of neurons.
Mice fed a high-fat diet for 30 weeks were considerably more likely to develop diabetes, face cognitive impairments, and develop depression and anxiety. The mice with diet-induced cognitive impairment were also more likely to gain weight excessively due to poor metabolism caused by the brain changes.
The anterior lateral motor cortex, an area of the brain associated with action planning, plays a major role in premature actions such as when a person "jumps the gun", or starts to run before a race starts.