Warren Lecture slide part 1.3

Question 1

What is visual perception?

Answer 1

Ability to apply cognitive concepts of space and form to analyze situations and make decisions
Dependent on the ability to transform raw data supplied by the retina into these cognitive concepts
- Via visual processing completed within the visual perceptual hierarchy

Question 2

Visual Perceptual Hierarchy

Answer 2

Visual perceptual processing is comprised of a hierarchy of processes that interact and subserve each other to provide integration on visual information

Question 3

Visual cognition

Answer 3

Use of visual input (patterns) in cognitive processing
Works on a memory prediction mode
Throughout childhood we develop concepts and rules about objects and space
Learn to interpret space based on these rules

Question 4

Visual memory

Answer 4

Supports visuo-cognition

You are able to understand and use new patterns to solve problems and answer questions by comparing them with memories

Question 5

Pattern recognition

Answer 5

Basic building blocks of cognition
Determines
- whether memory is laid down
- reject patterns that are nonsensical
Relies on identification of salient feature
- Features that define an object and discriminate it from other objects

Question 6

Attractors

Answer 6

Basic building block of pattern recognition
Group of neurons wired to fire together
- Activated by broad range of input
- Overlap with other attractors to provide mental representations of groups
Create generic memories

Question 7

Collect and store as many attractors as we can

Answer 7

The outcome of experience is acquisition of sequences of patterns
The frontal lobes use stored patterns when examining incoming patterns to make a decision about
- whether to use this new information
- How to use this new information

Question 8

Visual search and scanning

Answer 8

Sub-serves pattern recognition
Uses saccadic eye movements
Occurs on two levels 
- Automatic reflexive 
- Voluntary purposeful

Question 9

Automatic reflexive

Answer 9

• Directed by brainstem

Question 10

Voluntary purposeful

Answer 10

Directed by frontal lobes