In summary our findings show (1) that responses in auditory, first-order thalamus during the processing of speech sounds are task dependent, (2) that the response is strongest when processing features of speech sounds at the phoneme level, and (3) that the relative amplitude of the task-dependent modulation is correlated with individual behavioral performance.
For example, prior studies have shown that vasoactive agents that alter baseline cerebral blood flow, such as caffeine and carbon dioxide, can significantly alter the amplitude and dynamics of the task-related BOLD response.
Hermes et al. [ 2012] studied the spatial relationship between the amplitude of task-induced BOLD changes and the amplitude of task-induced ECoG power changes, in the primary sensorimotor cortex.
Specifically, one arrangement leads to more saccades along the vertical and horizontal directions, lower saccade amplitudes in the crucial phase of the task, more locally clustered and yet globally spread viewing.
The robustness of solution is measured via its stability radius, i.e., as the maximal amplitude of deviations for task time nominal values that do not violate the solution feasibility.
Blood Pb concentrations at time of testing were associated with higher rates of false alarms during the task and with reduced amplitude of the P3 wave elicited by go and no-go stimuli, suggesting reduced allocation of cognitive resources for task processing.
While the anterior contralateral negativity (ADAN) appears to be similar in size for all three tasks, the amplitude of the contralateral positivity at posterior electrodes (LDAP) seems to be substantially attenuated for the Saccade task relative to the Covert and Combined tasks (see Fig. 3, bottom panels).
In gap/overlap tasks and antisaccade tasks, the latency and amplitude of the saccades detected by GazeParser agreed with those detected by a commercial eyetracker.
The tasks did not differ significantly in the amplitude of the go-N2 [z = -1.04, p = 0.30, d = 0.18].
