Core - Introduction to Psychology

Chapter 3

Sensation and Perception

3.1 : Sensation

3.1 : Sensation

Sensation is the ability to detect external stimuli using specific sensory receptors present in the eyes, ears, nose, skin, and taste buds. For instance, ...

3.2 : Perception

3.2 : Perception

Perception is the process through which sensory inputs are organized, interpreted, and consciously experienced. It involves interactions between sensory ...

3.3 : Depth Perception and Spatial Vision

3.3 : Depth Perception and Spatial Vision

Depth perception enables the perception of objects in three dimensions. It uses both binocular and monocular cues to create a sense of depth. Binocular ...

3.4 : Visual System

3.4 : Visual System

Light enters the eye through the cornea, a thin transparent layer that refracts light to help focus it as it enters the eye, directing the light towards ...

3.5 : Color Vision

3.5 : Color Vision

Researchers have developed two theories to explain color vision. The trichromatic theory suggests that color perception arises from three types of cone ...

3.6 : Auditory Perception

3.6 : Auditory Perception

The auditory system in the ear facilitates sound perception. Sound waves enter the outer ear and transmit through the ear canal, causing the eardrum to ...

3.7 : Perceiving Loudness, Pitch, and Location

3.7 : Perceiving Loudness, Pitch, and Location

Place theory and frequency theory are two primary theories that explain how the brain receives pitch information. Place theory suggests that the brain ...

3.8 : Tactile and Chemical Senses

3.8 : Tactile and Chemical Senses

The tactile sense is a sense of touch that can recognize sensations such as pressure, temperature, or pain through specialized receptors in the skin. For ...

3.9 : Gestalt Principles of Perception

3.9 : Gestalt Principles of Perception

Gestalt principles of perception explain how objects are naturally grouped together to form whole, organized patterns or shapes. It includes the following ...

3.10 : Subliminal Perception

3.10 : Subliminal Perception

Subliminal perception refers to the processing of sensory information that occurs below the level of conscious awareness. Researchers study subliminal ...

3.11 : Extrasensory Perception

3.11 : Extrasensory Perception

Extrasensory perception, or ESP, is the ability to perceive events beyond the known senses, such as sight, hearing, and touch. Parapsychologists, ...

3.12 : Factors Affecting Perception

3.12 : Factors Affecting Perception

Perception is influenced by the perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, is the tendency to perceive ...

3.13 : Perceptual Constancy

3.13 : Perceptual Constancy

Perceptual constancy refers to the recognition that objects remain constant even when they appear different due to changes in lighting, distance, or ...

3.14 : Parallel Processing

3.14 : Parallel Processing

Parallel processing allows the brain to manage various sensory qualities, such as shapes, colors, movements, and depth, simultaneously. The information is ...

3.15 : Pain

Pain is a crucial sensation that alerts the body to potential damage. Pain receptors are widely dispersed throughout the body, present in the skin, muscle ...

3.16 : Visual Agnosia

3.16 : Visual Agnosia

Visual agnosia is a condition where individuals can describe the shape and color of an object but cannot identify or recognize it despite having normal ...

3.17 : Prosopagnosia

3.17 : Prosopagnosia

Prosopagnosia, also known as face blindness, is the inability to recognize faces. In severe cases, individuals with prosopagnosia may not recognize close ...

3.18 : Synesthesia

3.18 : Synesthesia

Synesthesia is a condition in which the networks of interconnected neurons that process specific types of information for two or more senses are joined, ...

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