Human cognitive neuroscience is a field of study that investigates the neural basis of human cognition, which refers to various mental processes such as perception, attention, learning, memory, decision-making, language and problem-solving. It aims to understand how the brain supports these cognitive functions. 

Researchers in human cognitive neuroscience use a combination of techniques, including behavioral tasks and computational modeling of behavior on those tasks to study the brain activity associated with different cognitive processes. These techniques allow them to observe and measure changes in brain activity and connectivity during performance of cognitive tasks, in response to stimuli, and across development, mental health conditions, and aging.