Finally, Golby et al. used a blocked design experiment comparing novel versus repeated stimuli, finding that the side of the epileptic focus influenced the lateralization of fMRI activation within the MTL, with greater activation contralateral to the affected side (Golby et al., 2002).
Irrespective of the side of the response movement, a higher right-sided negativity over ventrolateral prefrontal areas during PINV is obvious, although the lateralization of the activation is noticeably weaker when the response movement is given by the right thumb.
Whether innate or acquired, we predict that sensitivity to SF effectively channels the processing of particular classes of objects along visual pathways that are best adapted for their efficient processing: this might be tested by predicting the lateralization of occipitotemporal activations following training with novel object categories with high or low SF characteristics.
The design of the present study, which was to assess the influence of SF on the lateralization of ventral occipitotemporal activations in the absence of any intelligibility effects, employed simple sine-wave gratings rather than filtered images.
The posterior IPS carried a signal, which seemed to encode the spatial direction of the intended saccade, since it showed a lateralization of activation in the hemisphere opposite to the direction of the saccade.
In the present study, we directly contrast different experimental designs in terms of the intensity, extent, and lateralization of activation detected in healthy subjects.
These findings can be summarized as follows: The main effect hemisphere is explained by a strongly left-sided lateralization of activation in the STS.
(+0.75) Two PET studies in spontaneous [33, 34] and one in NTG-induced migraine [4], showed brain stem activation which persisted after sumatriptan treatment [4, 33, 34] (1.0) Lateralization of activation and pain is inconsistent.
There was no obvious lateralization of activation.
