Pattern classification is an important and powerful technique used in cognitive neuroimaging in a variety of cognitive domains, including object recognition. (14)

(a) Carefully describe the key steps necessary to train and then test a pattern classifier to reliably distinguish between when you imagine yourself playing tennis [PLAY] and when you imagine yourself sitting still on the tennis court patiently awaiting your turn to play [SIT]. (6)

(b) Make a clear and compelling argument for what the resulting brain regions from the following subtraction could reflect from a cognitive standpoint: [PLAY] - [SIT] (4)

(c) There are many things that may make it more difficult for a pattern classifier to accurately identify a given stimulus (i.e., recognizing that a given stimulus is in fact a toy truck). Offer two (2) realistic, plausible elements about a stimulus that may make it more difficult for the pattern classifier to accurately determine what you are perceiving, and explain how using multiple trials could help you try to resolve this. (4)