Cognitive science is an interdisciplinary field that studies the mind from an information processing perspective. It aims to model human performance to enhance knowledge workers like clinicians. Connectionism uses computer modeling of neural networks to explain human intellect. Neural networks are interconnected systems that mimic the brain's neurons and synapses. Cognitive informatics bridges the understanding of how information is processed in the mind and computer to build more efficient systems. Artificial intelligence develops tools based on human thought and intelligence to help capture complex cognitive processes.