Sensation and Perception

This set of flashcards covers key terms and definitions related to sensation, perception, and some aspects of learning based on the lecture notes.

Sensation

An elementary experience due to the stimulation of the sense organs.

Stimulus

Anything which initiates organic activity.

Sense organs

Sensitive nerve endings located in different body parts.

Receptor cells

Group of cells found in the different senses.

Sensory Adaptation

The decrease of sensitivity of the senses as stimulation persists over time.

Threshold

The level of stimulus energy which must be exceeded before a response will occur.

Perception

Analyzing, interpreting, understanding and giving meaning to the stimulus.

Visual Acuity

Accuracy or correctness of vision.

Color Vision

The ability to perceive colors.

Additive Color Mixing

A method of creating colors by mixing different light colors.

Subtractive Color Mixing

A method of creating colors by subtracting light wavelengths.

Myopia

Nearsightedness.

Hyperopia

Farsightedness.

Astigmatism

A condition caused by uneven curvature of the cornea.

Scotoma

A blind spot in the visual field.

Color Blindness

Inability to recognize colors.

Anosmia

Absence of smell.

Gustation

The sense of taste.

Kinesthetic Sense

The sense of direction or position.

Delusions

False beliefs that are resistant to reason.

Telepathy

The transference of thoughts from one person to another.