But many Lib Dems prefer a form of "stimulus" in the shape of extra spending on areas such as transport, council housing and energy efficiency.
The second and the third experiments manipulated the density of the local elements (Experiment 2) and the size of the global and local shapes of the stimuli (Experiment 3) to assess whether these variables could affect global or local perception of hierarchical visual patterns in fish.
Dakin and Bex [21] attributed the observed differences to stimulus artifacts such as the shape of the stimulus aperture, noting that commonly used circular windows will bias detection for radial and rotational patterns.
Our previous study [Hadjipapas et al., 2007] provided some empirical evidence supporting this idea in non-invasive MEG measurements in man: it was shown that different spatial frequency grating stimuli could be distinguished through the spectral shape of the stimulus related gamma response.
The subset of deflected whiskers corresponds with the shape of the stimulus, and the deflection direction corresponds with the movement direction of the stimulus.
We have proposed shape variability of stimuli to improve the training sessions.
But its reporting is mixed with Mr. Scheiber's very decided opinions — about, say, the size and shape of the stimulus and the political feasibility of passing something larger — that some readers will vigorously contest.
Stimulus orientation was manipulated by rotating the Gabor patch gratings relative to a vertical orientation (5° or 355°), and either a circle or an oval defined the shape of a stimulus.
Together, these observations demonstrate that the shape of a stimulus' spectral distribution (in addition to its spatial information) can be described as providing a 'context' for its perceived intensity.
If predictability plays a role in the perceived duration of the stimulus, does this prediction have to be violated at a low level (e.g., involving the edges and the shape of the stimulus) or a high level (e.g., number sequences such as 4.5.6 .? If the latter, this would implicate the involvement of brain areas higher than the primary visual areas.
