Psych Unit 3

Bottom-up processing

• sensory analysis that begins at the entry-level with what our senses can detect.

• perceptions begin with the most general and move toward the more specific

• the capacity for the process of reacting to certain stimuli selectively when several occur simultaneously.

• occurs when one fails to notice a readily visible yet unexpected visual stimulus in one's sight

Top-down processing

• sensory analysis that begins at the entry-level with what our senses can detect.

• perceptions begin with the most general and move toward the more specific

• the capacity for the process of reacting to certain stimuli selectively when several occur simultaneously.

• occurs when one fails to notice a readily visible yet unexpected visual stimulus in one's sight

Selective attentions

• sensory analysis that begins at the entry-level with what our senses can detect.

• perceptions begin with the most general and move toward the more specific

• the capacity for the process of reacting to certain stimuli selectively when several occur simultaneously.

• occurs when one fails to notice a readily visible yet unexpected visual stimulus in one's sight

Inattentional blindness

• sensory analysis that begins at the entry-level with what our senses can detect.

• perceptions begin with the most general and move toward the more specific

• the capacity for the process of reacting to certain stimuli selectively when several occur simultaneously.

• occurs when one fails to notice a readily visible yet unexpected visual stimulus in one's sight

Change blindness

• visual perception that occurs when a stimulus undergoes a change without this being noticed by its observer

• the smallest magnitude at which a sensory stimulus can reliably evoke a sensation.

• a method of differentiating a person's ability to discriminate the presence and absence of a stimulus from the criteria the person uses to make responses to those stimuli.

• the perception of change in any given stimulus is always dependent on what that stimulus is

Absolute threshold

• visual perception that occurs when a stimulus undergoes a change without this being noticed by its observer

• the smallest magnitude at which a sensory stimulus can reliably evoke a sensation.

• a method of differentiating a person's ability to discriminate the presence and absence of a stimulus from the criteria the person uses to make responses to those stimuli.

• the perception of change in any given stimulus is always dependent on what that stimulus is

Signal detection theory

• visual perception that occurs when a stimulus undergoes a change without this being noticed by its observer

• the smallest magnitude at which a sensory stimulus can reliably evoke a sensation.

• a method of differentiating a person's ability to discriminate the presence and absence of a stimulus from the criteria the person uses to make responses to those stimuli.

• the perception of change in any given stimulus is always dependent on what that stimulus is

Weber’s law

• visual perception that occurs when a stimulus undergoes a change without this being noticed by its observer

• the smallest magnitude at which a sensory stimulus can reliably evoke a sensation.

• a method of differentiating a person's ability to discriminate the presence and absence of a stimulus from the criteria the person uses to make responses to those stimuli.

• the perception of change in any given stimulus is always dependent on what that stimulus is

Sensory adaptation

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

• occurs when a sensory receptor converts a type of stimulus energy into an electrical impulse that can be interpreted by the brain

• our ability to deal with multiple stimuli simultaneously

• tiny cells that can receive waves of light and translate them into one of three colors (primary colors)

Transduction

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

• occurs when a sensory receptor converts a type of stimulus energy into an electrical impulse that can be interpreted by the brain

• our ability to deal with multiple stimuli simultaneously

• tiny cells that can receive waves of light and translate them into one of three colors (primary colors)