Fig 1.
HL = high load, LL = low load. Arrows indicate length of presentation. Participants determined if the shaded squares in the Probe were in the same positions as Target 1 and Target 2 combined, responding with a button press during the Probe period.
Table 1.
Task performance in the final sample.
Fig 2.
The sample.
Fig 3.
HL = high load, LL = low load.
Table 2.
Correlation matrix between age, education, neuropsychological measures and SAT performance.
Table 3.
Correlation matrix between age, neuropsychological measures and SAT performance adjusting for education.
Table 4.
Task activations.
Fig 4.
Task activations and deactivations for the whole sample.
Red = activation, blue = deactivation. Voxel p < .001, cluster p < .05(FWE-corrected).
Table 5.
Linear associations between task activations and age.
Fig 5.
Linear associations between age and task activations adjusted for grey matter probability.
a unmasked; b masked. Blue = decrease in activation with increasing age. Voxel p < .001, cluster p < .05(FWE-corrected).
Table 6.
Cubic associations between task activations and age.
Fig 6.
Cubic associations between age and task activations.
a Cubic association with age, adjusted for GMP; b cubic association with age, adjusted for GMP with task positive mask; c cubic association with age adjusted for GMP with task negative mask; d cubic association with age adjusted for education and GMP; e cubic association with age adjusted for education, accuracy and GMP; f cubic association with age adjusted for a cubic education level, accuracy and GMP. GMP = grey matter probability, red = increased activation with increasing age, blue = decrease in activation with increasing age. Voxel p < .001, cluster p < .05(FWE-corrected).