Sensation and Perception FRQ

Olfactory Bulb

• smallest amount by which two sensory stimuli can differ in order for an individual to perceive them as different.

• The Olfactory Bulb is a brain structure responsible for our sense of smell (known as Olfaction). Located at the tip of the Frontal lobe, the bulb processes information about odors after receiving sensory input from the nose

• refers to a reduction in sensitivity to a stimulus after constant exposure to it.

• smallest level of stimulus that can be detected, usually defined as at least half the time.

Sensory Adaptation

• essential structure in the olfactory system devoted to the sense of smell.

• smallest level of stimulus that can be detected

• refers to a reduction in a sensitivity to a stimulus after constant exposure to it.

• depends on the amplitude (energy), wavelength, the adaptation state of the observer, and the nature of any surrounding or intervening stimuli

Difference Threshold

• the minimum amount that something needs to change in order for a person to notice a difference 50% of the time.

• a non-noticeable change in a stimulus

• gustatory cells

• the maximum amount that something needs to change for a person to notice.

which of the following is a better example of Top Down Processing?

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Feature Detection

• how we percieve things differently

• how we sense things from the external world

• the ability to detect certain types of stimuli, like movements, shape, angles

• how we interpret information in the dark.

Dark Adaptation

• gate control theory

• transitioning from dark to light

• how the eyes detect features

• the ability of the eye to adjust to conditions of low illumination by means of an increased sensitivity to light

Brightness

• the brightness of a stimulus depends on the amplitude of a sound

• the brightness of a stimulus depends on the amplitude (energy), wavelength, the adaptation state of the observer and the nature of surrounding stimuli.

• our eyes ability to measure different colors

• happy thoughts