Perception

Question 1

Possible processes in pattern recognition? (3)

Answer 1

1. Template match (implausible)
2. Constituent features
3. Pattern identified by associated features* (may/may not be present every time; better than constituent (would still recognize an A w/ no peak)).

Question 2

3 Steps in object recognition from visual features

Answer 2

1. Features detected in parallel
2. Feature combos matched to stored info
3. Object identification based on best match

Question 3

Recognition Pandemonium (better than object rec. from visual features)

Answer 3

• Recognition of alphanumeric characteristics
• Features are line segments and intersections
• Independent detectors for each pattern
• Most activated pattern is recognized

Question 4

Problem with Feature Theory

Answer 4

No general account of features and how they are detected or combined.

Question 5

Synaesthesia

Answer 5

An involuntary, consistent phenomena in which stimulus are experienced in a different perceptual pathway.

Question 6

A type of Synaethesia where colours are elicited by letters or digits, though the association differs between subjects

Answer 6

Graheme-Colour Synaesthesia

Question 7

Stroop Task

Answer 7

• name the ink colour of colour words, or read the colour word
• Naming inconsistent colours is difficult but the reverse is less problematic

Question 8

Interpretation of the Stroop Effect

Answer 8

• Words automatically read
• Word reading interferes or competes with colour naming
• Reverse Stroop effect is weaker

Question 9

How can we test Synaethesia with the Stroop Task?

Answer 9

• Colour digits consistently or inconsistently w/ synaesthetic association
• Asked to name colour of digit
• synaesthetic person does worse on the incongruent task, but there is no difference for a normal person

Question 10

Evidence that Synaethetic “cross connection” isn’t purely perceptual (and is also conceptual)?

Answer 10

-when presented w/ a digit, operation, digit, colour patch, then asked to name colour, and then asked to report the arithmetic solution,
the conceptual colour associated with the digits interferes w/ colour naming in synaesthetics.