It was predicted that left ventral occipitotemporal cortex would be preferentially activated by high spatial frequencies and right ventral occipitotemporal cortex by low spatial frequencies.
By comparison, only a very medial region of right BA7 was selectively activated by the spatial conjunction task.
The fact that reach-related activity is high when the monkey fixates straight-ahead but low when it performs the same arm movement while looking leftward or rightward, as seen in Fig. 2A and B, could indicate that the cell is activated by the spatial coincidence between target of reaching and fixation point.
MEG and FMRI experiments in humans show that in a picture recognition task, the orbitofrontal cortex is rapidly activated by visual signals carrying low spatial frequencies (the reported MEG activity starts to develop before 100 ms), that could well originate from fast dorsal magnocellular pathways [32].
Since CreERT2 is activated by tamoxifen, this approach provides exquisite spatial and temporal control over G12DKras and D594ABraf expression.
In addition, a wider array of other brain regions, some involved in spatial memory, were activated by exploring novel objects in the dark in a bow-tie maze, e.g., the anterior thalamic nuclei, retrosplenial granular cortex, anterior cingulate cortex, and lateral entorhinal cortex.
Instead, the amplitude of the [Ca2+]i transient is produced by the temporal and spatial summation of Ca2+ sparks activated by ICa during the AP.
Ideally, any substantive claim for a common neural mechanism requires evidence of substantial overlap and no reliable spatial separation between the regions activated by the two tasks, in individual subjects' brains.
An assumption underlying the present study is that this process of mapping the time of a verb onto spatial formats is influenced by motor imagery activated by simple reading of a verb describing an action.
The two latter regions were selectively activated by the attentional demands of the temporal conjunction task when compared directly to the attentional demands of the spatial conjunction task, implicating these regions specifically in selective attention among temporally-distracting stimuli.
