Chapter 14

Question 1

Symbolic and nonsymbolic number recognition

Answer 1

Deciding which of two number symbols is larger depends on: (1) the distance between the numbers (distance effect; e.g. “5 4” slower than “5 3”), (2) the size of the numbers themselves (size effect; e.g. “5 3” slower that ”3 1”).

Effects even stronger with non-symbolic stimuli (e.g., dot arrays).

Question 2

A neural region for number meaning?

Answer 2

Converging evidence suggests importance of a region in intraparietal sulcus.

Question 3

Dyscalculia

Answer 3

Difficulties in understanding numbers; calculation difficulties.

Question 4

Number neurons

Answer 4

Neurons that respond preferentially to particular set sizes.