Research Topics
| Ipek OrucSummaryAffiliation: University of British Columbia Country: Canada Publications
| Collaborators |
Detail Information
Publications
Noise masking reveals channels for second-order lettersIpek Oruc
Department of Psychology, University of British Columbia, 3008 2136 West Mall, Vancouver, BC, Canada V6T 1Z4
Vision Res 46:1493-506. 2006..Unlike the nonlinear dependence found for first-order letters (implying scale-dependent processing), for second-order letters the channel frequency is half the letter texture stroke frequency (suggesting scale-invariant processing)...- Scale dependence and channel switching in letter identificationIpek Oruc
Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, BC, Canada
J Vis 9:4.1-19. 2009.... 
The effect of attention on the illusory capture of motion in bimodal stimuliIpek Oruc
Department of Ophthalmology and Visual Sciences, University of British Columbia, Canada
Brain Res 1242:200-8. 2008..We found that attention does have an effect on how the motion signals are combined across modalities, but only when the susceptibility for capture between the two signals are comparable...- Bootstrap analysis of the single subject with event related potentialsIpek Oruc
Department of Ophthalmology and Visual Science, University of British Columbia, Vancouver, BC, Canada
Cogn Neuropsychol 28:322-37. 2011.... - Critical frequencies in the perception of letters, faces, and novel shapes: evidence for limited scale invariance for facesIpek Oruc
Human Vision and Eye Movement Laboratory, Department of Medicine Neurology, University of British Columbia, Vancouver, BC, Canada
J Vis 10:20. 2010..This suggests an important difference between the processing of faces and other objects that may reflect their unique status as stimuli... - A novel face aftereffect based on recognition contrast thresholdsIpek Oruc
Human Vision and Eye Movement Laboratory, Department of Medicine Neurology, University of British Columbia, Vancouver, BC, Canada
Vision Res 50:1845-54. 2010..The findings indicate greater complexity to adaptation, with facilitation, suppression, lateral inhibition of unadapted representations, and additional perceptual factors at long durations... - Facial age after-effects show partial identity invariance and transfer from hands to facesMichelle Lai
Department of Medicine Neurology, University of British Columbia, Vancouver, Canada
Cortex 48:477-86. 2012..These findings confirm that face adaptation has components that cannot be explained by low-level image-based effects but involve high-level representations that may be influenced by related visual semantic information... - Center-surround organization of face-space: evidence from contrast-based face-primingShabnam Rostamirad
Department of Ophthalmology and Visual Science, University of British Columbia, Vancouver, British Columbia, Canada
Neuroreport 20:1177-82. 2009..This suggests a center-surround organization in which facial representations close to the priming stimulus are more suppressed than those that are distant... - Adaptation improves discrimination of face identityIpek Oruc
Human Vision and Eye Movement Laboratory, Department of Medicine Neurology, University of British Columbia, Vancouver, BC, Canada
Proc Biol Sci 278:2591-7. 2011..These results indicate a form of gain control to heighten perceptual sensitivity in the vicinity of a currently viewed face, analogous to forms of adaptive gain control at lower levels of the visual system... - The anatomic basis of the right face-selective N170 IN acquired prosopagnosia: a combined ERP/fMRI studyKirsten A Dalrymple
Department of Psychology, University of British Columbia, Vancouver, Canada
Neuropsychologia 49:2553-63. 2011..We conclude that the face-selective N170 in prosopagnosia requires residual function of at least two components of the core face-processing network... - Gender in facial representations: a contrast-based study of adaptation within and between the sexesIpek Oruc
Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, Canada
PLoS ONE 6:e16251. 2011..Our results suggest that male and female faces likely occupy the same face space, allowing transfer of aftereffects between the genders, but that there are special properties that emerge along gender-defining dimensions of this space... - The role of skin texture and facial shape in representations of age and identityMichelle Lai
Human Vision and Eye Movement Laboratory, Department of Medicine Neurology, University of British Columbia, Vancouver, Canada
Cortex 49:252-65. 2013..The lack of cross-component adaptation transfer suggests independent encoding of shape and texture, at least for age representations... - It doesn't matter how you feel. The facial identity aftereffect is invariant to changes in facial expressionChristopher J Fox
Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, BC, Canada
J Vis 8:11.1-13. 2008..We conclude that, in contrast to the significant identity-dependent component seen in representations of expression, representations of facial identity are independent of variations in expression... - Factors contributing to the adaptation aftereffects of facial expressionAndrea Butler
Faculty of Medicine, University of British Columbia, Vancouver BC, Canada
Brain Res 1191:116-26. 2008..We conclude that facial expression aftereffects are not due to local adaptation to image elements but due to high-level adaptation of neural representations that involve both facial features and facial configuration...