An XGA-touch panel 12-inch monitor (Paceblade Slim-book P120; PaceBlade Technology, Hong Kong, People's Republic of China) was used to present all visuospatial stimuli for testing.
Stimulus trials for testing changes in mechanical sensitivity consisted of graded isosceles trapezoid-wave stimuli (100-ms rise time, 2-s width, 60-s inter-stimulus interval) delivered in ascending order, which included threshold and suprathreshold stimuli.
The device allows for specific control of the test stimulus, small fields for testing purely central foveal function (flicker sensitivity changes quickly across the central retina), and fixation points that allow parafoveal regions to be evaluated.
The order of items and null-events within each run was determined by a genetic algorithm [68] which selects the most efficient sequence for testing stimulus contrasts.
For testing stimulus-material effects the phoneme /a/ had to be identified both in the syllables and the adjectives.
Stimuli differed from those used for testing ferret gap detection in two ways: Stimulus noise duration was 400 ms, and only a single gap was interleaved within the acoustic stimulus.
Second-order conditioning is a technique for testing whether a stimulus can acquire the reinforcing property of a US by conditioning with the US and the stimulus can support new conditioning thereafter.
Half the stimuli for test 1 were consistent with the exposure rule (C1, index indicating test 1) and half represented violations (V1) of the dependency rule (table 1).
Ellipses (including their extremes exemplars, i.e., stroke and circle) therefore appear to be a compelling stimulus to test for motor-perceptual interactions selectively related to movement geometry.
Classically, these dynamic processes are assessed by constant stimulation paradigms, for example paired-pulse stimuli with varying inter-stimulus intervals to test for short-term plasticity (STP) or high-frequency (tetanic) stimuli to induce long-term plasticity (LTP).
