Week 3

Question 1

______ is the process of recognizing, organising and interpreting information is….

Answer 1

perception

Question 2

What is the resting neurons number?

Answer 2

-70

excited/depolarised is +30

Question 3

______ An organ or cell able to respond to light, heat, or other external stimulus and transmit a signal to a sensory nerve.

Answer 3

receptor

Question 4

What is sensory adaption?

Answer 4

Sensory adaption occurs when sensory receptors change their sensitivity to the stimulus - constant stimulation leads to lower sensitivity

Question 5

Which theory suggests that the brain is not required for perception?

Answer 5

Bottom up theory

Question 6

What theory is James Gibson Famous for?

Answer 6

Direct perception theory - bottom up processing.

Question 7

People actively construct perceptions using information based on expectations is in line with what theory?

Answer 7

Top Down theory

Question 8

Which theory bottom-up/top-down theory is correct?

Answer 8

top down theory

Question 9

Started from the bottom now we here - means?

Answer 9

bottom-up is wrong, top-down is right

Question 10

which theory suggests that we need both our senses and brains for perception?

Answer 10

Top-down theory

Question 11

relating to or denoting the side of the body opposite to that on which a particular structure or condition occurs.

Answer 11

contralateral

Question 12

What is the feature matching theory?

Answer 12

The theory which is similar to the template theory but less strict. e.g. the letter “F” will look the same in different fonts

Question 13

Which theory has several types of images of cats which can all be recognised as a cat?

Answer 13

Recognition-by-components theory

Question 14

who’s theory uses texture gradients as cues for depth and distance? Allowing is to perceive directly the relative proximity or distance of objects

Answer 14

Gibson’s theory of direct perception

Question 15

What are optical flow fields? And who studied them

Answer 15

Movement represented by dots of light. Gibson. LED lights on moving man

Question 16

Which theory? Recognize objects on the basis of a small number of characteristics/elements?

Answer 16

Feature-matching theory

Question 17

Which theory? Describe how 3D images are identified and breaks shapes down into geons?

Answer 17

Recognition-by-components theory

Question 18

what are the four main bottom-up processing theories?

Answer 18

1. direct perception
2. template theories
3. feature-matching theories
4. recognition-by-components theory

Question 19

What’s a weakness of template theory?

Answer 19

problem of imperfect matches, no flexibility in stimuli allowed

Question 20

What are feature detectors?

Answer 20

brain cells that respond to specific feature such as lines and angles

Question 21

Which processing model occurs quickly and involves making inferences, guessing from experience and basing perceptions on other perceptions?

Answer 21

top down processing

Question 22

Gestalt approaches to form perception requires

Answer 22

figure-ground
proximity
similarity 
continuity 
closure
symmetry

Question 23

What is it when Eyes turn inward as object moves towards you, brain uses this information to judge distance

Answer 23

binocular convergene

Question 24

What is Agnosia?

Answer 24

Inability to recognize and identify objects or people, despite having knowledge of the characteristics of the objects or people

Question 25

When does agnosia occur?

Answer 25

when the “what pathway” of the brain is damaged