Visual imagery

Question 1

Uses of imagery

Answer 1

computing spatial relationships

retrieval of detail from long term memory

event prediction

mental rehearsal

creativity

Question 2

verbal system vs imagery system

Paivio

Answer 2

verbal system is specialised for dealing with abstract linguistic units, which involve discrete, sequentially arranged informational units that are indirectly and arbitrarily related to things, according to the conventions of a given language

imagery system is assumed to be specialised for processing non verbal info in the form of images - memory representations corresponding directly to concrete things. images, are analog representations of perceptual information .

Question 3

Pylyshyn

Answer 3

the extent that image refers to what i experience when i imagine a scene, then surely that exists in the same sense that an other sensation or conscious content does

what people report is not properties of their image but of the objects that they are imaging

big critic of kosslyn

propositional representation - visual representation an epiphenomenon

Question 4

representations

Answer 4

External:

1) Pictorial
2) Linguistic

Internal:

1) Symbolic:
- Analogical, pictorial
- Propositional
2) Distributed

Question 5

What is a proposition ?

Answer 5

According to Eysnck + Keanes, propositions are only language like in that they capture abstract-ideational content

A simplification of our natural language

Question 6

Language vs Image

Answer 6

Language:
Discreet
Explicit
Abstract

Picture:
No discreet symbols
Implicit
Concrete

Question 7

where are propositions used

Answer 7

deductive reasoning

semantic networks and schemata

computer languages such as LISP and PROLOG

Question 8

dual coding theory of paivo

Answer 8

there are two interconnected systems carrying out encoding, organising, retrieval

concrete words are more likely to be coded in both systems, but not abstract words

concrete words are better recalled than abstract words

Question 9

mental rotation

Answer 9

the more degrees an item needs to rotate to be regular, the more time it takes to be recognised

Question 10

Kosslyn

Answer 10

mental scanning technique - longer to scan two points that were further away from each other - shows perception is spatial

rabbit next to elephant or next to fly
- quicker to identify features when next to fly