Brain Functional Correlates of Working Memory: Reduced Load-Modulated Activation and Deactivation in Aging without Hyperactivation or Functional Reorganization

. Author manuscript; available in PMC: 2015 Oct 28.

Published in final edited form as: J Int Neuropsychol Soc. 2014 Sep 29;20(9):945–950. doi: 10.1017/S1355617714000824

Functional Scan Parameters by Study

Study	n	Scanner	Functional scan parameters
1	9	1	32 slices, 195 reps, slice thickness = 4 mm, TR = 2500 ms, TE = 32, flip angle = 90°, echo = 30 ms. Field maps collected and applied to correct for image distortion.^**
2	29	2	32 slices, 195 reps, slice thickness = 4 mm, TR = 2500 ms, TE = 32, flip angle = 90°, echo = 30 ms. Field maps collected and applied.
3a	15	2	32 slices, 195 reps, slice thickness = 4 mm, TR = 2500 ms, TE = 30, flip angle = 90°, echo = 30 ms. Field maps not collected.
3b	11	2^*	32 slices, 195 reps, slice thickness = 4 mm, TR = 2500 ms, TE = 30, flip angle = 90°, echo = 30 ms. Field maps were not collected.

Except for one participant on scanner 1.

^**

Field map corrections not available for two individuals due to technical error.