In the Libet et al. study (1983) that asked participants to flex their wrist and record when they decided to flex it,

A) people were not very accurate in determining when they actually moved their wrist.
B) participants flexed their wrists in response to a flashing light.
C) the results suggested that the brain started to flex the wrist before participants were conscious of their decision to do so.
D) researchers concluded there is no free will.

Libet Et Al.

Refers to a group of researchers led by Benjamin Libet who conducted experiments in the 1980s that were significant in the study of free will and consciousness, particularly focusing on the timing of conscious intentions and motor actions.

Wrist Flex

The movement of bending the wrist towards the forearm, often used in exercises aimed at strengthening the muscles that flex the wrist.

Free Will

is the concept that humans have the ability to choose and act upon their own decision making, free from certain constraints.