Movies showing dynamic coding of category information
The movies below show that 'abstract' category information is coded by
changing patterns of neural activity that are time locked to the onset
of the stimulus/trial (essentially this is Fig. 6C, and D in movie
format). The black non-changing curve in the movies show the
decoding accuracy when the training and testing were done at the same
time period (i.e., this is the same curves as shown in Fig. 3A).
The changing red curve shows the decoding accuracy when
training
with data at one particular time period and testing at all other times
(the training time is indicated by the blue moving line segment at the
bottom of the movie). As can be seen, the best decoding
accuracies for both ITC and PFC always occur when the training and
testing are done at the same time period relative to stimulus/trial
onset, indicating that information is coded by different patterns of
activity at different time periods. The dynamic nature of
information coding is particular easy to see in the movie of PFC.