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Flashcards in Sensation and Perception test Deck (168)
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1

Sensation?

the process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment

2

Perception?

the processes by which her brain organizes and interprets sensory input

3

What does Perception enable us to do?

recognize meaningful objects and events

4

Bottom-up Processing?

analysis that begins with the sensory receptors and works up to the brain's integration of sensory information

5

Top-down processing?

information processing guided by higher-level mental processes

6

what does top-down processing do?

when we construct receptions drawing on our experience and expectations

7

Selective attention?

the focusing of conscious awareness on a particular stimulus

8

Inattentional blindness

failing to see visual objects when our attention is directed elsewhere ex. paying attention to 3 people playing basketball while a women walks across the screen that we don't notice

9

Change blindness

failing to notice changes in the environment

10

Transduction

the process of converting one form of energy into another that your brain can use.

11

What is an example of transduction?

in sensation, the transforming of stimulus energies, such as sights, sounds, and smells, into neural impulses our brain can interpret

12

Psychophysics?

rudy of relationships between the physical characteristics of stimuli such as intensity and our psychological experience of them

13

Absolute threshold?

the minimum stimulation needed to detect a particular stimulus 50 percent of the time

14

What are examples of minimum threshold?

detect a particular light from 30 miles away, sound, pressure, taste, or oder such as the drop of perfume in 3 rooms

15

Signal detection theory

theory predicting how and when we detect the presence of faint stimulus (signal) amine background stimulation (noise) ex. exhausted parents will notice the faintest whimper from a newborn's cradle while failing to notice louder, unimportant sounds

16

Subliminal?

below one's absolute threshold for conscious awareness

17

Priming?

activation, often unconsciously, of certain associations, thus predisposing one's perception, memory, or response

18

Difference Threshold?

minimum difference between two stimuli required for detection 50 percent of time

19

Weber's Law

principle that to be perceived as different, two stimuli must differ by a constant minimum percentage(Rather than a constant amount)

20

Sensory Adaptation?

diminished sensitivity as a consequence of constant stimulation

21

Perceptual Set?

a mental predisposition to perceive one thing or another ex. picture of the young or old women - young kids see it as young women - old people see it as a old women

22

Extrasensory Perception and abbreviation?

(ESP) the controversial claim that perception can occur apart from sensory input

23

What does extrasensory perception include?

telepathy, clairvoyance, precognition

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What is telepathy?

mind to mind communication

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What is clairvoyance?

perceiving remote events, such as a house on fire in another state

26

What is precognition?

perceiving future events, such as an unexpected death in the next month

27

Parapsychology?

study of paranormal phenomena, including ESP and psychokinesis

28

Wavelength?

distance from the peak of one light or sound wave to the peak of the next, electromagnetic wavelengths vary from the short blips of cosmic rays to the long pulses of radio transmission

29

Hue?

color we experience

30

What determines the Hue?

the wavelength of light