wk 4 ATTENTION

Question 1

Minimum energy required to elicit a perceptual response is known as…

Answer 1

Absolute threshold

Question 2

What is he binding problem?

Answer 2

Features such as colour and shape are initially coded together but then analysed in different parts of the brain. However, the brain must still represent which features belong together.

Question 3

Which theory proposes that attention helps to resolve the binding problem?

Answer 3

Feature integration theory

Question 4

Inhibition of return is….

Answer 4

When subjects take longer to respond to valid than invalid cues

Question 5

Define early selection

Answer 5

Gating happens before sensory and perceptual analysis

Question 6

Define lat selection

Answer 6

Gating happens after sensory and perceptual processing

Question 7

The minimum energy required to elicit a perceptual response is know as the…

Answer 7

Absolute threshold

Question 8

The amount of change needed to generate a change in perception (jnd) is also known as the…

Answer 8

Difference threshold function

Question 9

Exogenous cueing at longer cue-target delays (>400ms) can result in ______ __ _____, an effect which is NOT present for endogenous cues.

Answer 9

Inhibition of return

Question 10

There are 2 experiments involving valid and invalid cueing. The first presents 50/50 valid cues where the 2nd presents 75% valid and 25% invalid. Which is the endogenous and which is the exogenous cueing task?

Answer 10

Endogenous= 75/25
Exogenous= 50/50

Question 11

Ability to report a 2nd target when it comes close in time behind a 1st target is known as…

Answer 11

attentional blink

Question 12

Lag one sparing is…

Answer 12

when 2 targets are very close together in time attentional blink is spared

Question 13

Attentional blink occurs when 2 targets are placed between…

Answer 13

150-450 ms from each other

Question 14

The theory that any unneeded information is discarded before processing is known as…

Answer 14

the early selection model

Question 15

The P1 and N1, close to 100 and 200 ms respectively, show sustained spatial attention affects consistent with attention acting on ____ processing of sensory input

Answer 15

initial

Question 16

when subjects take longer to respond to valid than invalid cues, this is called

Answer 16

Inhibition of return

Question 17

The ability to consciously direct attention to a particular aspect of the environment is endogenous or exogenous?

Answer 17

Endogenous

Question 18

When valid cues are less accurately reported than invalid cues, this is called ______ __ ____, and is only present during exogenous cueing paradigms

Answer 18

Inhibition of return

Question 19

Define smiultanagnosia, optix ataxia and ocular apraxia

Answer 19

• Simultanagnosia
– can only see one thing at a time

• Optic ataxia
– because they can’t localise visually (no spatial map), can’t reach for things

• Ocular apraxia
– difficulty moving eyes to object

Question 20

IPS = inferior parietal sulcus & FEF = frontal eye fields are involved in ______ attention, whereas the right TPJ = temporal parietal junction is involved with_____ attention.

Answer 20

Endogenous (Top-down control: Knowledge, expectation, goal driven)
Exogenous (Stimulus-driven control: Sensory stimulation)