Visual selective attention improves our perception and performance by modifying sensory
inputs at an early stage of processing. Spatial attention produces the most consistent early …

Coherent high-frequency neuronal activity has been proposed as a physiological indicator
of perceptual and higher cognitive processes. Some of these processes can only be …

The densities of fibers of different sizes were calculated in ten regions of the corpus
callosum of twenty human brains (ten females, ten males). Light microscopic examination …

1. Using two magnetic stimulators, we investigated the effect of a conditioning magnetic
stimulus over the motor cortex of one hemisphere on the size of EMG responses evoked in …

Reaction time (RT) differences to visual stimuli as a function of expectancy have been
attributed to changes in perceptual processing or entirely to shifts in decision and response …

Three experiments were conducted to determine whether attention-related changes in
luminance detectability reflect a modulation of early sensory processing. Experiments 1 and …

Event-related potentials (ERPs) were recorded from healthy subjects in response to
unilaterally flashed high and low luminance bar stimuli presented randomly to left and right …

Evoked potentials (EPs) were used to help identify the timing, location, and intensity of the
information-processing stages applied to faces and words in humans. EP generators were …

Using a meta-analytic procedure we have analysed 16 studies employing a simple
unimanual reaction time (RT) paradigm and lateralized visual stimuli to provide an estimate …

The understanding of the relationship between structure and function has always
characterized biology in general and neurobiology in particular. One such fundamental …