Gilbert, Krull & Malone · J. Pers. Soc. Psychol. · 1990

Unbelieving the
Unbelievable

Spinoza claimed that to understand a proposition is already to accept it as true; rejecting a falsehood requires a second, separate effort that can be disrupted. Descartes denied this — for him, comprehension and assent are independent.

Gilbert et al.'s Study 1 set out to decide between them. You will play the role of their subject: learn a small fragment of an invented “Hopi” vocabulary, occasionally have your processing interrupted by a tone, and then sit a memory test.

Your anonymous responses will be added to the class aggregate for in-class discussion.

Part I
Vocabulary
20 trials. Each pairs an invented word with an English noun and labels it TRUE or FALSE.
Part II
Identification
Was each item true, false, never seen — or did you see it but get no signal?