Questions about MEG Working Memory Task - Finger Assignment and Stimulus IDs

[Sepideh Kilani]

Dear HCP Team and Community,

I hope this message finds you well. I am a researcher using the Human Connectome Project's MEG dataset, specifically for the Working Memory task. I have a couple of questions that I hope you can help clarify.

 

Question 1: Finger Assignment Counterbalancing

 the documentation does not specify details about finger assignment procedures. Specifically, I would like to know:

• Is there a counterbalancing procedure for finger assignments across subjects?
• For example, do half the subjects use their middle finger for targets and index finger for non-targets, while the other half use the reverse assignment?
• Or is the finger assignment counterbalanced within subjects across trials/blocks?

 

Question 2: Stimulus IDs

Second, you mentioned you will provide the stimulus IDs of the blocks. Could you please provide this information or guide me on where I can find it?

 

I would greatly appreciate any guidance you can provide on these matters.

Best regards,

Sepideh