Stimulation can be divided into endogenous stimulation and exogenous stimulation.

Endogenous stimulation refers to stimulation generated inside the human body, such as hunger, pain, etc.

Exogenous stimulation refers to stimulation from the external environment, such as light, sound, etc.

Intensity: The intensity of a stimulus can be used to describe the intensity of the stimulus.

Time: The duration of a stimulus affects people's perception and reaction to the stimulus.

Method: The form of stimulation can be single or complex.

Frequency: The frequency with which a stimulus occurs affects how people respond to it.

Reactions can be divided into physiological reactions and psychological reactions.

Physiological responses refer to physiological changes that occur when the body faces stimuli, such as increased heartbeat, muscle contraction, etc.

Psychological reactions refer to changes in people's psychological states when facing stimuli, such as fear, joy, etc.

Intensity: The intensity of a reaction can be used to describe the extent of the reaction.

Timing: The time and order in which reactions occur can affect subsequent reactions.

Direction: The direction of the response can be positive or negative.

Duration: The duration of a response affects people’s subsequent behavior and thinking.

How people react when faced with stimuli can reveal cognitive processes such as attention, memory, and thinking.

People's responses to different stimuli can influence their subsequent behavior.

Educators can adjust teaching strategies and methods based on students' responses to stimuli to improve students' learning results.