The only exceptions to this were task 1, the very first odorant pair to be discriminated, and task 5, the first double transfer task: here, the difference between block 1 performance and overall performance ranged from 15.6% (Swede mice) to 28.6% (control mice).
During the discrimination task, they discriminated pairs of stimuli along a continuum based on the physical features of faces.
Thus, this component strongly discriminated between task-active and task-deactive regions, as would be expected, but with the important exception of associating LMPFC with task-active regions in the solution (the second factor was not clearly interpretable and we do not discuss it here).
Mice were then trained on a discriminated instrumental task to press a lever to obtain the US (Figure 1C, left) using the same instrumental training protocol as previously employed to test satiety-induced reinforcer devaluation in C57BL/6J mice [30].
The best discriminating task between users and controls was Arithmetic (Wechsler Adult Intelligence Scale, WAIS-III).
Previous studies have shown that the anterior IPS is activated when subjects perform a surface orientation discrimination task that requires discriminating between surfaces defined by texture, perspective and disparity [38].
To control for attentional modulation known to affect cortical and subcortical structures (O'Connor et al., 2002), subjects performed a two alternate forced choice contrast discrimination task that involved discriminating subtle changes in the contrast of pairs of alternately presented stimuli within a stimulus cycle and responding with a button press.
The ABX discrimination task required participants to discriminate between faces on a continuum.
As the Hue Discrimination task was the only task that significantly discriminated the DD from the whole CA group this result may have implications for understanding of the temporal sequence of activation of visual functioning in dorsal and ventral areas in good and poor readers.
Stride length and some variability measures were significantly different between the two cognitive tasks suggesting an ability to discriminate between tasks.
A reduced P300 amplitude during an auditory discriminated-task paradigm has been significantly noted in FM patients as compared with control individuals in three cross-sectional studies by two different groups [ 46- 48] (Table 7).
