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Comments
A solid study, though I am not sure the focus on 'subjective experience' is warranted. Some additional controls would be nice. A couple include:
1. Determine if SI is required for the task. We know from blindsight that humans and monkeys can perform well on simple discrimination tasks when they are not aware of the stimuli presented. Can the monkeys perform the task when the relevant regions of SI are inactivated or lesioned?
2. Add a reversal learning paradigm, where the contingency of the task is reversed (instead of 'Left Button' for 'Stimulus Present', switch to the 'Right Button'). This would help differentiate perceptual from post-perceptual behavioral selection processes.
I hope Romo's group continues to unpack the specific computational role of MPC in this discrimination task!
Comments
A solid study, though I am not sure the focus on 'subjective experience' is warranted. Some additional controls would be nice. A couple include:
1. Determine if SI is required for the task. We know from blindsight that humans and monkeys can perform well on simple discrimination tasks when they are not aware of the stimuli presented. Can the monkeys perform the task when the relevant regions of SI are inactivated or lesioned?
2. Add a reversal learning paradigm, where the contingency of the task is reversed (instead of 'Left Button' for 'Stimulus Present', switch to the 'Right Button'). This would help differentiate perceptual from post-perceptual behavioral selection processes.
I hope Romo's group continues to unpack the specific computational role of MPC in this discrimination task!
Posted by: Eric Thomson | December 13, 2005 02:43 PM