A peek into the interplay between vision and decision making in the brain riken_en NatureComms
L/R choices in each trial were measured from the direction of the first movement after stimulus onset. The state axis for groupusing left-choice trials. As for the detection of wheel movements, we restricted the analysis to trials in which the first movement occurred at least 0.5 s after stimulus onset and with no saccades 0.5 s before the detected movement. Trials were aligned to the time of movement detection.), we proceeded as follows.
Hence, SDI measures how much the discriminability can increase when using all areas vs just the one with the largest d’. The SDI plays a similar role to deviance-explained in statistical models, as it measures the relative contribution of a small model vs the full model . In this definition, SDI = 0% if only 1 area contributes and *100% if all N areas contribute equally and independently.To compute choice-related d’ values for individual pixels, we proceeded as follows.
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