Results 1 to 10 of about 1,499,529 (161)
A test of the reward-contrast hypothesis [PDF]
Source memory, a facet of episodic memory, is the memory of the origin of information. Whereas source memory in rats is sustained for at least a week, spatial memory degraded after approximately a day. Different forgetting functions may suggest that two memory systems (source memory and spatial memory) are dissociated.
Dalecki SJ, Panoz-Brown DE, Crystal JD.
exaly +5 more sources
hypr: An R package for hypothesis-driven contrast coding [PDF]
The hypr package in R provides the researcher with a straightforward interface to generate contrast matrices from research hypotheses and the reverse. It can be used to derive contrast matrices for custom research hypotheses and as an instructional tool to understand what research hypotheses a given contrast matrix tests.
Maximilian M Rabe +2 more
exaly +3 more sources
Anisotropic perception of slant from texture gradient: Size contrast hypothesis. [PDF]
When we see an optical pattern that has a gradient of the size and/or density of its texture elements, we often perceive a surface that is slanted in depth. Our inquiry was to ask whether the effect of a texture gradient depends on the direction of the gradient (ground, ceiling, and sidewall patterns) or on the position of the observer's head (upward ...
Higashiyama A, Yamazaki T.
europepmc +4 more sources
Contrast modulated maskers: Test of a late nonlinearity hypothesis
The contrast threshold for detecting a low frequency test grating in the presence of a contrast-modulated high frequency masker is heavily dependent upon the phase relations between the gratings: test stimuli in + or - cosine phase are much more detectable than those in + or -sine phase.
Jacob Nachmias, J Nachmias
exaly +3 more sources
In order to investigate the effects of visual experience on early visual development, the current study compared contrast sensitivity across infants born with different degrees of moderate-to-late prematurity. Here the logic is that at any given postterm age, the most premature infants will have the oldest postnatal age.
Rain G Bosworth, Karen R Dobkins
exaly +3 more sources
Interleaved practice (i.e., exemplars from different categories are intermixed within blocks) has been shown to enhance induction performance compared to blocked practice (i.e., exemplars from the same category are presented sequentially).
Yabo Ge +6 more
doaj +1 more source
Lightness contrast & assimilation: testing the hypotheses
Lightness contrast alters lightness of a target decreasing its similarity with neighbouring surfaces (inducers), while lightness assimilation has an opposite effect, similarity is increased.
Predrag Nedimović, Sučica Zdravković
doaj +1 more source
Background: Despite several hypotheses, our understanding of syringomyelia’s pathophysiology remains limited. The hypothesis proposed by Oldfield et al.
Han Soo Chang
doaj +1 more source
Natural variation in female reproductive hormones does not affect contrast sensitivity [PDF]
Evidence suggests that females experience adaptive shifts in facial preferences across the menstrual cycle. However, recent discussions and meta-analyses suggest that these findings are equivocal.
Abigail L. M. Webb +2 more
doaj +1 more source

