7 Jul
2011
7 Jul
'11
3:56 a.m.
Dear freesurfers,
Which stimuli do you think provide the best retinotopic maps?
I have done a retinotopy analysis using the following stimuli:
Polar angle:
- 45 deg counter-clockwise rotating wedge - 8 unique positions - flickering at 2 Hz - stimulation period: 36 sec - no. of cycles: 6 - TR = 3
Eccentricity:
- expanding ring - 8 unique positions - flickering at 2 Hz - stimulation period: 36 sec - no. of cycles: 6 - TR = 3
Any suggestions on how to optimize this stimulation? E.g. different period length, more runs, bi-directional, different TR
Thank you!
Best regards,
Anders