What is a neuron?

A neuron is defined as a cell that transmits nerve impulses, making it a fundamental component of the nervous system. Neurons are specialized cells designed to carry signals throughout the body, allowing for communication between different parts of the brain and the rest of the nervous system. They accomplish this through electrical impulses and chemical signals, facilitating the processing of information necessary for various physical and cognitive functions.

This concept establishes neurons as the building blocks of the brain and nervous system, playing critical roles in sensation, movement, emotions, and cognitive processes. The importance of neurons in the context of psychology lies in their role in understanding how the brain functions, influences behavior, and leads to various psychological phenomena.

The other options do not fit the definition: brain neurotransmitters are chemicals that facilitate communication between neurons, the central unit of psychological analysis refers more broadly to frameworks used in psychology rather than a specific cell type, and methods used in psychological experimentation pertain to research techniques rather than biological entities. Thus, understanding neurons is crucial for exploring the connection between brain function and psychological processes.