Cognitive Neuroscience Tasks

Question 1

Letter Matching Task

(Posner)

Answer 1

You’ll see 2 letters:
- Are they from SAME category (both vowels, both
consonants) or DIFFERENT category?
- It takes time to process 4 steps:
1. are they identical?
2. are they the same letter?
3. are they both vowels/consonants?
4. are they different?

AA, Aa, AE or XZ, AX

Question 2

Memory Comparison Task

(Sternberg)

Answer 2

• subject is shown 1, 2, or 4 letters
• subject has to then identify if a new letter was part of the initial set of letters
• showed that we process this in serial, meaning the entire set, not in parallel

1st screen: A, K, E, M 2nd screen: E

Question 3

Word Superiority Effect

Answer 3

• Question: does the stimulus contain an A or E?
• When the stimulus is a word, it is easier for participants

RACK CAKR XAXX

Question 4

Stroop Task

Answer 4

• Participants must say the color of the text out loud
• Text does not always match color, making it difficult
• Ex. it could say “blue” but be written in green ink, so you need to say green