Zobrazeno 1 - 9
of 9
pro vyhledávání: '"R. J. Snowden"'
Autor:
R. J. Snowden, I. K. E. Ekweozor
Publikováno v:
Marine Biology. 105:51-57
Littoral infaunal density was recorded from December 1983 to October 1984 throughout the Bonny Estuary in the Niger delta, Nigeria, to provide a baseline for the monitoring of oil pollution. Results on the most abundant faunal elements, polychaetes a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f29fd666e874f12b31eb42ac92b9a952
https://doi.org/10.1007/bf01344270
https://doi.org/10.1007/bf01344270
Autor:
P T, Brawn, R J, Snowden
Publikováno v:
Journal of experimental psychology. Human perception and performance. 26(1)
Selective attention to 1 of 2 overlapping objects was assessed in a cuing paradigm. Participants detected or identified targets that appeared in 1 of 6 possible target locations (3 on each object). Significant cuing effects for the simple detection o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::a1ddcadc4807c34ad0f8f44cdf88314b
https://pubmed.ncbi.nlm.nih.gov/10696622
https://pubmed.ncbi.nlm.nih.gov/10696622
Autor:
R J Snowden, P T Brawn
Publikováno v:
Perception. 26:98-98
It is well established that cueing the location of a target stimulus can improve performance on certain visual tasks over ‘uncued’ locations. Here we ask whether cueing the colour of a target can produce similar gains in performance. Subjects vie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::538713e80b9e97a5b57c3a476b200d01
https://doi.org/10.1068/v970173
https://doi.org/10.1068/v970173
Autor:
R J Snowden, M R Blakemore
Publikováno v:
Perception. 26:90-90
Motion processes have often been regarded as being preattentive in nature. Additionally, in a few attention studies attempts have been made to incorporate the methodology common to classical psychophysics. Speed discrimination with multiple grating p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5cdc26309419e0137ccaba2b6ee25e6f
https://doi.org/10.1068/v970248
https://doi.org/10.1068/v970248
Autor:
M C Doyle, R J Snowden
Publikováno v:
Perception. 26:129-129
Perrott et al (1990 Perception & Psychophysics48 214 – 226) suggested that the use of auditory information to guide saccadic eye movements may mediate the facilitation of visual search by auditory spatial information. We modified a later paradigm (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23e72a29efbc0baa43f7e06aaae2e934
https://doi.org/10.1068/v970244
https://doi.org/10.1068/v970244
Autor:
R J Snowden
Publikováno v:
Perception. 26:362-362
Peripheral vision has been modelled as a coarser version of foveal vision. Thus visual behaviour elicited by, say, a 2 cycles deg−1 grating imaged foveally would be reproduced in the periphery by a lower spatial frequency (say 1 cycle deg−1). Tun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fcbeffb2f4373816223d3b01f2c3abda
https://doi.org/10.1068/v970155
https://doi.org/10.1068/v970155
Autor:
R. J. Snowden, M. R. Blakemore
Publikováno v:
Perception. 25:14-14
It has been reported that the perceived speed of a target stimulus varies with its physical contrast (Thompson, 1982 Vision Research22 377 – 380). Yet the effect is somewhat ephemeral with intersubject variations, effects of presentation mode, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22b32a2069712cc644b76b68e92d6f74
https://doi.org/10.1068/v96l0807
https://doi.org/10.1068/v96l0807
Autor:
R J Snowden
Publikováno v:
Perception. 25:149-149
The duration over which contrast detection improves (Bloch's regime) decreases with increasing light level and is often thought to reflect the temporal characteristics of the visual system. There is also some evidence to suggest that the temporal cha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1717db11890ce59f092ca98f31e5bd79
https://doi.org/10.1068/v96l0606
https://doi.org/10.1068/v96l0606
Autor:
P. T. Brawn, R. J. Snowden
Publikováno v:
Perception. 25:25-25
Many visual tasks have been shown to be influenced by the attentional state of the observer. However the conditions under which attention has effects is still unclear. Here we report upon a series of experiments where the observer has to react to cha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b046fd47cd0a228465f9b655aeafea39
https://doi.org/10.1068/v96l0108
https://doi.org/10.1068/v96l0108