Lecture 8 - Mental chronometry (cont.) and simple decision

Question 1

(lecture):

Describe the additive-factor method Saul Sternberg (1969).

Answer 1

(lecture):

See blue writing on page 1 of G doc notes.

Question 2

(lecture):

Describe an application of the additive-factor method to major depressive disorder (MDD).

Answer 2

(lecture):

See red writing on page 4 of G doc notes.

Question 3

(lecture):

Read turquoise writing on page 4 onwards in G doc notes.

Answer 3

(lecture):

Question 4

(lecture):

Objectives:
Can we relax the assumption of pure insertion?
- The additive-factor method
How and when do we make simple choices?
- The sequential probability ratio test (SPRT)

Summary:

• The additive-factor method
• A statistical framework of simple decision
• The sequential probability ratio test
  > An extension to the signal detection theory
  > Accumulate evidence (log of likelihood ratio) over time
  > Gives which decision and when to decide

Answer 4

(lecture):