Emre Ozgen | Yasar University (original) (raw)
Papers by Emre Ozgen
Journal of Vision, 2010
Modulation of perceptual discrimination of simple physical dimensions characterize three related ... more Modulation of perceptual discrimination of simple physical dimensions characterize three related phenomena: categorical perception (eg, Roberson et al. 2000; JEP General, 369398); the perceptual magnet effect (eg Guenther et al., 1999; JOSA, 29002912); and prototype-bias ( ...
Observers can use spatial scale information flexibly depending on categorisation task and on thei... more Observers can use spatial scale information flexibly depending on categorisation task and on their prior sensitisation. Here, we
explore whether attentional modulation of spatial frequency processing at early stages of visual analysis may be responsible. In three experiments, we find that observers perception of spatial frequency (SF) band-limited scene stimuli is determined by the SF content of images previously experienced at that location during a sensitisation phase. We conclude that these findings are consistent with the involvement of relatively early, retinotopically mapped, stages of visual analysis, supporting the attentional modulation of spatial frequency channels account of sensitisation effects.
New Directions in Colour Studies, 2011
Journal of experimental psychology. General, 2002
Color perception can be categorical: Between-category discriminations are more accurate than equi... more Color perception can be categorical: Between-category discriminations are more accurate than equivalent within-category discriminations. The effects could be inherited, learned, or both. The authors provide evidence that supports the possibility of learned categorical perception (CP). Experiment 1 demonstrated that observers' color discrimination is flexible and improves through repeated practice. Experiment 2 demonstrated that category learning simulates effects of "natural" color categories on color discrimination. Experiment 3 investigated the time course of acquired CP. Experiment 4 found that CP effects are acquired through hue- and lightness-based category learning and obtained interesting data on the dimensional perception of color. The data are consistent with the possibility that language may shape color perception and suggest a plausible mechanism for the linguistic relativity hypothesis.
Personality and Social Psychology Bulletin, 2014
Linguistics, 2000
We report a study of Turkish color terms with four main aims: to establish the inventory of BASIC... more We report a study of Turkish color terms with four main aims: to establish the inventory of BASIC color terms; to compare this inventory with Berlin and Kay's 11 color universals; to see if Turkish is an exception to the theory by having two basic terms for blue; and if it is, to explore ...
Journal of Vision, 2010
When an observer is cued to detect a sinusoidal grating presented at one SF their detection of an... more When an observer is cued to detect a sinusoidal grating presented at one SF their detection of an unexpected SF is impaired compared with when the same SF is expected (Sowden & Schyns, 2000, Perception, 29, s24). Further, these 'expectancy' effects are SF tuned ...
Journal of Vision, 2010
Humans are able to process spatial scale flexibly depending on task demands and prior knowledge (... more Humans are able to process spatial scale flexibly depending on task demands and prior knowledge (eg Schyns & Oliva (1999) Cognition, 69, 243265). Could such ability be due to attentional modulation of early visual processing mechanisms such as spatial frequency (SF) channels (Sowden, ...
Journal of Vision, 2010
Modulation of perceptual discrimination of simple physical dimensions characterize three related ... more Modulation of perceptual discrimination of simple physical dimensions characterize three related phenomena: categorical perception (eg, Roberson et al. 2000; JEP General, 369398); the perceptual magnet effect (eg Guenther et al., 1999; JOSA, 29002912); and prototype-bias ( ...
Journal of Vision, 2010
Recent work suggests that, for some tasks, selection among multiple narrow-band SF channels is de... more Recent work suggests that, for some tasks, selection among multiple narrow-band SF channels is determined 'bottom-up' by stimulus size (eg Majaj et al., 2002, V. Res., 42, 11651184). In contrast, work on spatial scale processing suggests that 'top-down' factors can determine ...
Journal of Vision, 2010
Categorical perception (CP) is characterised as a superior ability to discriminate stimuli when t... more Categorical perception (CP) is characterised as a superior ability to discriminate stimuli when they belong to different categories (cross-category) than when they are the members of the same category (within-category). Colour perception is well-documented to show this pattern. ...
Journal of Cross-Cultural Psychology, 2013
Journal of Vision, 2010
Modulation of perceptual discrimination of simple physical dimensions characterize three related ... more Modulation of perceptual discrimination of simple physical dimensions characterize three related phenomena: categorical perception (eg, Roberson et al. 2000; JEP General, 369398); the perceptual magnet effect (eg Guenther et al., 1999; JOSA, 29002912); and prototype-bias ( ...
Observers can use spatial scale information flexibly depending on categorisation task and on thei... more Observers can use spatial scale information flexibly depending on categorisation task and on their prior sensitisation. Here, we
explore whether attentional modulation of spatial frequency processing at early stages of visual analysis may be responsible. In three experiments, we find that observers perception of spatial frequency (SF) band-limited scene stimuli is determined by the SF content of images previously experienced at that location during a sensitisation phase. We conclude that these findings are consistent with the involvement of relatively early, retinotopically mapped, stages of visual analysis, supporting the attentional modulation of spatial frequency channels account of sensitisation effects.
New Directions in Colour Studies, 2011
Journal of experimental psychology. General, 2002
Color perception can be categorical: Between-category discriminations are more accurate than equi... more Color perception can be categorical: Between-category discriminations are more accurate than equivalent within-category discriminations. The effects could be inherited, learned, or both. The authors provide evidence that supports the possibility of learned categorical perception (CP). Experiment 1 demonstrated that observers' color discrimination is flexible and improves through repeated practice. Experiment 2 demonstrated that category learning simulates effects of "natural" color categories on color discrimination. Experiment 3 investigated the time course of acquired CP. Experiment 4 found that CP effects are acquired through hue- and lightness-based category learning and obtained interesting data on the dimensional perception of color. The data are consistent with the possibility that language may shape color perception and suggest a plausible mechanism for the linguistic relativity hypothesis.
Personality and Social Psychology Bulletin, 2014
Linguistics, 2000
We report a study of Turkish color terms with four main aims: to establish the inventory of BASIC... more We report a study of Turkish color terms with four main aims: to establish the inventory of BASIC color terms; to compare this inventory with Berlin and Kay's 11 color universals; to see if Turkish is an exception to the theory by having two basic terms for blue; and if it is, to explore ...
Journal of Vision, 2010
When an observer is cued to detect a sinusoidal grating presented at one SF their detection of an... more When an observer is cued to detect a sinusoidal grating presented at one SF their detection of an unexpected SF is impaired compared with when the same SF is expected (Sowden & Schyns, 2000, Perception, 29, s24). Further, these 'expectancy' effects are SF tuned ...
Journal of Vision, 2010
Humans are able to process spatial scale flexibly depending on task demands and prior knowledge (... more Humans are able to process spatial scale flexibly depending on task demands and prior knowledge (eg Schyns & Oliva (1999) Cognition, 69, 243265). Could such ability be due to attentional modulation of early visual processing mechanisms such as spatial frequency (SF) channels (Sowden, ...
Journal of Vision, 2010
Modulation of perceptual discrimination of simple physical dimensions characterize three related ... more Modulation of perceptual discrimination of simple physical dimensions characterize three related phenomena: categorical perception (eg, Roberson et al. 2000; JEP General, 369398); the perceptual magnet effect (eg Guenther et al., 1999; JOSA, 29002912); and prototype-bias ( ...
Journal of Vision, 2010
Recent work suggests that, for some tasks, selection among multiple narrow-band SF channels is de... more Recent work suggests that, for some tasks, selection among multiple narrow-band SF channels is determined 'bottom-up' by stimulus size (eg Majaj et al., 2002, V. Res., 42, 11651184). In contrast, work on spatial scale processing suggests that 'top-down' factors can determine ...
Journal of Vision, 2010
Categorical perception (CP) is characterised as a superior ability to discriminate stimuli when t... more Categorical perception (CP) is characterised as a superior ability to discriminate stimuli when they belong to different categories (cross-category) than when they are the members of the same category (within-category). Colour perception is well-documented to show this pattern. ...
Journal of Cross-Cultural Psychology, 2013