Chapter 18 Emotion

Question 1

Research shows that two dimensions describe most of people’s conscious response to emotional things

Answer 1

pleasure (or valance) and arousal

Question 2

During emotional scene perception, strong enhancement of a long-lasting ERP is called the ______.

Answer 2

late positive potential (LPP)

Question 3

Late positive potential occurs _____ ms after emotional scene onset.

Answer 3

450-900ms

Question 4

The Late positive potential is STRONGLY correlated (~.95) with the ____ ratings of a scene and not _____.

Answer 4

correlated with arousal ratings but no pleasantness

Question 5

LPP enhancement ______ among multiple scene repetitions.

Answer 5

MAINTAINS

Question 6

Early fMRI of emotional scene perception showed widespread increases in _____ cortical activity during arousing scene perception (just like the LPP).

Does scene color matter?

Answer 6

-inc in visual cortical activity
-scene color doesn’t matter

Question 7

Do people differ in their arousal ratings?

Where does this also show up ?

Answer 7

Yes they differ in arousal ratings; appears on LPP

Question 8

What did they do to combat the loud and restrictive MRI scanner?

Answer 8

made fake MR scanner

Question 9

Where did LPP line up well with BOLD signal?

Answer 9

Middle and late stage visual cortex

Question 10

Lpp reflects sum of activity over

Answer 10

lateral occipital cortex, intraparietal sulcus, and fusiform gyrus (IT)

Question 11

Before the LPP appears, a brief ERP also shifts during emotional scenes; the ________________.

Answer 11

early posterior negativity