A Sahraie

Summary

Affiliation: University of Aberdeen
Country: UK

Publications

  1. ncbi request reprint Spatial channels of visual processing in cortical blindness
    Arash Sahraie
    Department of Psychology, University of Aberdeen, Aberdeen AB24 2UB, UK
    Eur J Neurosci 18:1189-96. 2003
  2. ncbi request reprint Awareness of faces is modulated by their emotional meaning
    Maarten Milders
    Vision Research Laboratories, School of Psychology, University of Aberdeen, Aberdeen, Scotland
    Emotion 6:10-7. 2006
  3. pmc Increased sensitivity after repeated stimulation of residual spatial channels in blindsight
    Arash Sahraie
    Vision Research Laboratories, School of Psychology, University of Aberdeen, Aberdeen AB24 2UB, United Kingdom
    Proc Natl Acad Sci U S A 103:14971-6. 2006
  4. doi request reprint The continuum of detection and awareness of visual stimuli within the blindfield: from blindsight to the sighted-sight
    Arash Sahraie
    Vision and Attention Laboratories, School of Psychology, College of Life Sciences and Medicine, King s College, University of Aberdeen, Aberdeen, United Kingdom
    Invest Ophthalmol Vis Sci 54:3579-85. 2013
  5. ncbi request reprint Attention induced motion blindness
    A Sahraie
    Department of Psychology, Vision Research Laboratories, University of Aberdeen, Aberdeen, UK
    Vision Res 41:1613-7. 2001
  6. ncbi request reprint Psychophysical and pupillometric study of spatial channels of visual processing in blindsight
    A Sahraie
    Vision Research Laboratories, Department of Psychology, University of Aberdeen, Aberdeen AB24 2UB, UK
    Exp Brain Res 143:249-56. 2002
  7. pmc Consciousness of the first order in blindsight
    Arash Sahraie
    Vision and Attention Laboratories, School of Psychology, College of Life Sciences and Medicine, University of Aberdeen, Aberdeen AB24 3FX, United Kingdom
    Proc Natl Acad Sci U S A 107:21217-22. 2010
  8. doi request reprint Improved detection following Neuro-Eye Therapy in patients with post-geniculate brain damage
    Arash Sahraie
    School of Psychology, College of Life Sciences and Medicine, University of Aberdeen, Aberdeen, UK
    Exp Brain Res 206:25-34. 2010
  9. ncbi request reprint Induced visual sensitivity changes in chronic hemianopia
    Arash Sahraie
    Vision Research Laboratories, School of Psychology, University of Aberdeen, UK
    Curr Opin Neurol 20:661-6. 2007
  10. ncbi request reprint Temporal properties of spatial channel of processing in hemianopia
    Arash Sahraie
    Vision Research Laboratories, School of Psychology, University of Aberdeen, AB24 2UB, United Kingdom
    Neuropsychologia 46:879-85. 2008

Detail Information

Publications31

  1. ncbi request reprint Spatial channels of visual processing in cortical blindness
    Arash Sahraie
    Department of Psychology, University of Aberdeen, Aberdeen AB24 2UB, UK
    Eur J Neurosci 18:1189-96. 2003
    ..The findings are discussed in relation to previous reports on the incidence of blindsight and performance on tasks involving spatial processing...
  2. ncbi request reprint Awareness of faces is modulated by their emotional meaning
    Maarten Milders
    Vision Research Laboratories, School of Psychology, University of Aberdeen, Aberdeen, Scotland
    Emotion 6:10-7. 2006
    ..These results extend previous reports of preferential detection of emotional words or schematic objects and suggest that fear conditioning can modulate detection of formerly neutral stimuli...
  3. pmc Increased sensitivity after repeated stimulation of residual spatial channels in blindsight
    Arash Sahraie
    Vision Research Laboratories, School of Psychology, University of Aberdeen, Aberdeen AB24 2UB, United Kingdom
    Proc Natl Acad Sci U S A 103:14971-6. 2006
    ..The results show that repeated stimulation by appropriate visual stimuli can result in improvements in visual sensitivities in the very depths of the field defect...
  4. doi request reprint The continuum of detection and awareness of visual stimuli within the blindfield: from blindsight to the sighted-sight
    Arash Sahraie
    Vision and Attention Laboratories, School of Psychology, College of Life Sciences and Medicine, King s College, University of Aberdeen, Aberdeen, United Kingdom
    Invest Ophthalmol Vis Sci 54:3579-85. 2013
    ..We investigated systematically the effect of repeated exposure on detection and reported awareness of visual stimuli presented deep within the field defect of 5 hemianopic patients...
  5. ncbi request reprint Attention induced motion blindness
    A Sahraie
    Department of Psychology, Vision Research Laboratories, University of Aberdeen, Aberdeen, UK
    Vision Res 41:1613-7. 2001
    ..The findings reported here show attentional requirements can affect motion perception. This effect can not be explained by motion adaptation or priming and may instead arise from the suppression of irrelevant stimuli...
  6. ncbi request reprint Psychophysical and pupillometric study of spatial channels of visual processing in blindsight
    A Sahraie
    Vision Research Laboratories, Department of Psychology, University of Aberdeen, Aberdeen AB24 2UB, UK
    Exp Brain Res 143:249-56. 2002
    ..Finally, we have compared our results with those reported in studies of a well-known subject, GY, which demonstrate remarkable similarities. Implications are discussed in relation to blindsight research...
  7. pmc Consciousness of the first order in blindsight
    Arash Sahraie
    Vision and Attention Laboratories, School of Psychology, College of Life Sciences and Medicine, University of Aberdeen, Aberdeen AB24 3FX, United Kingdom
    Proc Natl Acad Sci U S A 107:21217-22. 2010
    ....
  8. doi request reprint Improved detection following Neuro-Eye Therapy in patients with post-geniculate brain damage
    Arash Sahraie
    School of Psychology, College of Life Sciences and Medicine, University of Aberdeen, Aberdeen, UK
    Exp Brain Res 206:25-34. 2010
    ....
  9. ncbi request reprint Induced visual sensitivity changes in chronic hemianopia
    Arash Sahraie
    Vision Research Laboratories, School of Psychology, University of Aberdeen, UK
    Curr Opin Neurol 20:661-6. 2007
    ..These areas of blindness at the chronic stage were thought to be permanent and irreversible. Recent evidence demonstrating changes in visual sensitivity within the field defect following training is reviewed...
  10. ncbi request reprint Temporal properties of spatial channel of processing in hemianopia
    Arash Sahraie
    Vision Research Laboratories, School of Psychology, University of Aberdeen, AB24 2UB, United Kingdom
    Neuropsychologia 46:879-85. 2008
    ..The findings have implications both for the reported incidence of blindsight and development of rehabilitation strategies...
  11. doi request reprint Does delay impair localisation in blindsight?
    D P Carey
    School of Psychology, University of Aberdeen, Aberdeen AB24 2UB, Scotland
    Neuropsychologia 50:3673-80. 2012
    ..These data suggest that DB's manual and saccadic localisation skills do not depend on the circuits of the dorsal stream, or that delay, contrary to theory, does not severely compromise dorsal sensorimotor skills...
  12. pmc Orienting to threat: faster localization of fearful facial expressions and body postures revealed by saccadic eye movements
    Rachel L Bannerman
    Vision Research Laboratories, School of Psychology, University of Aberdeen, Aberdeen AB24 2UB, UK vision abdn ac uk
    Proc Biol Sci 276:1635-41. 2009
    ..In addition, enhanced detection of fearful body postures suggests that we can readily recognize threat-related information conveyed by body postures in the absence of any face cues...
  13. doi request reprint Redundant target effect and the processing of colour and luminance
    N Ridgway
    Vision Research Laboratories, School of Psychology, University of Aberdeen, Aberdeen, UK
    Exp Brain Res 187:153-60. 2008
    ..When a luminance component is present, the reaction time data can be explained by a probability summation account also known as the race model...
  14. pmc New Farnsworth-Munsell 100 hue test norms of normal observers for each year of age 5-22 and for age decades 30-70
    P R Kinnear
    Vision Research Laboratories, Department of Psychology, University of Aberdeen, UK
    Br J Ophthalmol 86:1408-11. 2002
    ..To provide normative data for chromatic discrimination on the Farnsworth-Munsell 100 hue test particularly for observers under 23 years of age...
  15. ncbi request reprint Awareness and confidence ratings in motion perception without geniculo-striate projection
    A Sahraie
    Department of Optometry and Visual Science, City University, London, UK
    Behav Brain Res 96:71-7. 1998
    ..It was found that although the subject's reported confidence and awareness varied monotonically as a function of stimulus speed, they were not equivalent measures...
  16. ncbi request reprint The effect of perceptual load on attention-induced motion blindness: the efficiency of selective inhibition
    Julia L Hay
    School of Psychology, College of Life Sciences and Medicine, University of Aberdeen, Aberdeen, United Kingdom
    J Exp Psychol Hum Percept Perform 32:885-907. 2006
    ..The apparent conflict with studies reporting reduced distractor inhibition under high load conditions was resolved by distinguishing between the effects of "cognitive" and "perceptual" load...
  17. doi request reprint Attentional bias to brief threat-related faces revealed by saccadic eye movements
    Rachel L Bannerman
    Vision Research Laboratories, School of Psychology, University of Aberdeen, United Kingdom
    Emotion 10:733-8. 2010
    ..Importantly, saccades could reveal threat biases at brief cue durations consistent with current theories of emotion and attention...
  18. doi request reprint Attentional cueing: fearful body postures capture attention with saccades
    Rachel L Bannerman
    Vision Research Laboratories, School of Psychology, University of Aberdeen, Aberdeen, UK
    J Vis 10:23. 2010
    ..Importantly, saccades could reveal threat biases at brief cue durations consistent with current theories of emotion and attention...
  19. doi request reprint Does localisation blindsight extend to two-dimensional targets?
    David P Carey
    Vision Research Laboratories, School of Psychology, University of Aberdeen, Aberdeen AB24 2UB, Scotland
    Neuropsychologia 46:3053-60. 2008
    ....
  20. ncbi request reprint Influence of emotional facial expressions on binocular rivalry
    Rachel L Bannerman
    Vision Research Laboratories, School of Psychology, University of Aberdeen, Aberdeen AB24 2UB, UK
    Ophthalmic Physiol Opt 28:317-26. 2008
    ..In addition, upright emotional faces were perceived for significantly longer durations than upright neutral faces. The results provide further support for the influence of emotional meaning on binocular rivalry...
  21. ncbi request reprint Can blindsight be superior to 'sighted-sight'?
    Ceri T Trevethan
    Vision Research Laboratories, School of Psychology, University of Aberdeen, Aberdeen, Scotland, UK
    Cognition 103:491-501. 2007
    ..Monocular testing also rules out differences between the eyes as an explanation, suggesting that DB demonstrates superior detection for certain stimuli within his visual field defect compared to normal vision...
  22. ncbi request reprint Central inhibition ability modulates attention-induced motion blindness
    Maarten Milders
    Vision Research Laboratories, Department of Psychology, University of Aberdeen, Aberdeen AB24 2UB, UK
    Cognition 94:B23-33. 2004
    ..The results confirm that attention can modulate motion perception and suggest that the processes involved may be shared with high-level cognitive abilities...
  23. ncbi request reprint Form discrimination in a case of blindsight
    Ceri T Trevethan
    Vision Research Laboratories, School of Psychology, William Guild Building, University of Aberdeen, Aberdeen, AB24 2UB Scotland, UK
    Neuropsychologia 45:2092-103. 2007
    ..The results are discussed in relation to the issues of likely neuronal mediation, the potential for improvement in cases of blindsight and the potential relevance of these findings in relation to theories of normal visual perception...
  24. ncbi request reprint Hemispatial asymmetries in judgment of stimulus size
    Jennifer Charles
    University of Aberdeen, Aberdeen, Scotland
    Percept Psychophys 69:687-98. 2007
    ..Attenuation of this bias upon the manipulation of parameters indicates that this phenomenon is context specific and is affected by similar parameters that are known to influence the magnitude of error in pseudoneglect...
  25. ncbi request reprint Oculomotor control and the maintenance of spatially and temporally distributed events in visuo-spatial working memory
    David Pearson
    Department of Psychology, University of Aberdeen, Scotland, UK
    Q J Exp Psychol A 56:1089-111. 2003
    ..It is argued that these results demonstrate a crucial role for oculomotor control processes during the rehearsal of location-specific representations in working memory...
  26. doi request reprint Transient pupil constrictions to faces are sensitive to orientation and species
    C A Conway
    School of Psychology, University of Aberdeen, Scotland, UK
    J Vis 8:17.1-11. 2008
    ..e., orientation and species) and thus reveal a novel, objective, and non-invasive method for studying face perception...
  27. ncbi request reprint Spatial and temporal processing in a subject with cortical blindness following occipital surgery
    Ceri T Trevethan
    Vision Research Laboratories, Department of Psychology, King s College, University of Aberdeen, AB24 2UB, Aberdeen, UK
    Neuropsychologia 41:1296-306. 2003
    ....
  28. ncbi request reprint ERPs predict the appearance of visual stimuli in a temporal selection task
    Michael Niedeggen
    Institute of Experimental Psychology II, Heinrich Heine University, D 40225 Dusseldorf, Germany
    Brain Res 1097:205-15. 2006
    ..These results indicate that sensory processing is also modulated by attentional resources in temporal selection tasks which - in turn - affect the appearance of the relevant target stimulus...
  29. ncbi request reprint Probing the prerequisites for motion blindness
    Michael Niedeggen
    Institute for Experimental Psychology II, Heinrich Heine University, Duesseldorf, Germany
    J Cogn Neurosci 16:584-97. 2004
    ..We propose that these nonsensory ERP components reflect a postperceptual frontal gating mechanism that controls the access of visual stimuli to higher order evaluation and conscious detection...
  30. ncbi request reprint Is experimental motion blindness due to sensory suppression? An ERP approach
    Michael Niedeggen
    Institute of Experimental Psychology II, Heinrich Heine University, D 40225, Duesseldorf, Germany
    Brain Res Cogn Brain Res 13:241-7. 2002
    ..These results indicate that attenuation of sensory motion processing does not account for this transient, attention-induced deficit in visual motion perception...
  31. ncbi request reprint Specifying the distractor inhibition account of attention-induced motion blindness
    Guido Hesselmann
    Institute of Experimental Psychology II, Heinrich Heine Universitat, Duesseldorf, Germany
    Vision Res 46:1048-56. 2006
    ..Furthermore, we rule out the possibility that subjects falsely classify targets as distractors due to uncertainty of temporal order...