Full context:   Cognitive neuroscience investigates how the nervous system gives rise to cognition. It is particularly interested in the brain, covering both micro-scale studies of individual neurons and synapses as well as the macro-scale analyses of interactions between brain regions. For example, cognitive neuroscientists study the brain areas responsible for processes like memory and decision-making, exploring how they represent and transform information and communicate with each other on a biological level. They also examine how these processes are influenced by neurotransmitters—signalling molecules that affect information exchange between neurons.