Psyc: Chp 4 Vocab

What is the definition of Sensation?

• The process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment.

• The interpretation of sensory information in order to represent and understand the environment.

• A mental process that involves the organization and interpretation of sensory information.

• The ability to detect changes in the environment and respond to them.

What is the definition of Perception?

• The process of organizing and interpreting sensory information.

• A method of memorizing information.

• A type of physical exercise.

• A form of artistic expression.

The definition of Absolute threshold is:

• The minimum intensity of a stimulus that can be detected 50% of the time.

• The maximum intensity of a stimulus that can be detected 100% of the time.

• The average intensity of a stimulus that can be detected 75% of the time.

• The intensity of a stimulus that cannot be detected at all.

The definition of Difference Threshold is:

• The smallest detectable difference between two stimuli

• The ability to detect a single stimulus

• The maximum intensity of a stimulus

• The time it takes to respond to a stimulus

Sensory Adaptation is defined as:

• The process by which our brain filters out redundant or unnecessary stimuli.

• The ability to detect changes in the environment.

• The enhancement of sensory perception.

• The complete loss of sensory perception.

Signal-detection theory is defined as:

• A theory that explains how we detect signals amidst noise.

• A theory about the propagation of sound waves.

• A theory related to the transmission of electrical signals.

• A theory concerning the detection of visual stimuli.

What is the definition of Pupil?

• The opening in the iris that allows light to enter the eye

• A student in school

• A part of the brain

• A type of plant

What is the definition of Lens?

• A device that focuses or disperses light rays

• A type of camera

• A unit of measurement for light

• A type of optical illusion

What is the definition of Retina?

• A part of the brain responsible for vision

• A layer at the back of the eyeball containing cells that are sensitive to light

• A muscle that controls the movement of the eye

• A type of lens used in cameras

Photoreceptors are responsible for detecting what?

• Light

• Sound

• Taste

• Smell