What term refers to the chemicals in the brain that regulate psychological functioning?

The correct term for the chemicals in the brain that regulate psychological functioning is neurochemistry. Neurochemistry focuses on the study of neurotransmitters, hormones, and other chemical substances that facilitate communication between neurons and between the nervous system and other organs. These chemicals play a crucial role in various psychological processes, including mood regulation, memory, learning, and behavior.

Understanding neurochemistry is essential in psychology as it provides insight into how brain chemistry affects mental health and emotional responses. For instance, imbalances in neurotransmitter levels can lead to conditions like depression or anxiety, highlighting the importance of these chemicals in everyday psychological functioning.

In contrast, psychodynamics refers to the psychological forces underlying human behavior, often associated with Freudian theories. Neuroplasticity describes the brain's ability to reorganize itself by forming new neural connections throughout life, which is more about structural changes than chemical regulation. Cognitive functions encompass mental processes such as perception, memory, and reasoning, but do not specifically focus on the chemical elements involved in these processes.