J T Enns

Summary

Affiliation: University of British Columbia
Country: Canada

Publications

  1. ncbi request reprint The development of change detection
    David I Shore
    Department of Psychology, Neuroscience and Behaviour, McMaster University, Hamilton, Ontario, Canada
    Dev Sci 9:490-7. 2006
  2. pmc Visual similarity in masking and priming: The critical role of task relevance
    James T Enns
    University of British Columbia
    Adv Cogn Psychol 3:211-26. 2007
  3. pmc Apparent motion can impair and enhance target visibility: the role of shape in predicting and postdicting object continuity
    Peter J Lenkic
    Department of Psychology, University of British Columbia Vancouver, BC, Canada
    Front Psychol 4:35. 2013
  4. doi request reprint The role of clarity and blur in guiding visual attention in photographs
    James T Enns
    Department of Psychology, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4
    J Exp Psychol Hum Percept Perform 39:568-78. 2013
  5. doi request reprint Attentional limits and freedom in visually guided action
    James T Enns
    Department of Psychology, University of British Columbia, Vancouver, BC, Canada
    Prog Brain Res 176:215-26. 2009
  6. ncbi request reprint Object substitution and its relation to other forms of visual masking
    James T Enns
    Department of Psychology, University of British Columbia, 2136 West Mall, Vancouver, BC, Canada V6T 1Z4
    Vision Res 44:1321-31. 2004
  7. ncbi request reprint Visual binding in the standing wave illusion
    James T Enns
    Department of Psychology, University of British Columbia, Vancouver, Canada
    Psychon Bull Rev 9:489-96. 2002
  8. ncbi request reprint New objects dominate luminance transients in setting attentional priority
    J T Enns
    Department of Psychology, University of British Columbia, Vancouver, Canada
    J Exp Psychol Hum Percept Perform 27:1287-302. 2001
  9. ncbi request reprint What's next? New evidence for prediction in human vision
    James T Enns
    Department of Psychology, University of British Columbia, 2136 West Mall, Vancouver, British Columbia, V6T 1Z4, Canada
    Trends Cogn Sci 12:327-33. 2008
  10. ncbi request reprint A negative compatibility effect in priming of emotional faces
    Jennifer D Bennett
    Department of Psychology, University of British Columbia, Vancouver British Columbia, Canada
    Psychon Bull Rev 14:908-12. 2007

Detail Information

Publications60

  1. ncbi request reprint The development of change detection
    David I Shore
    Department of Psychology, Neuroscience and Behaviour, McMaster University, Hamilton, Ontario, Canada
    Dev Sci 9:490-7. 2006
    ..Changes in object orientation were detected more readily. These results point to important differences in the perceptual reality of younger and older children...
  2. pmc Visual similarity in masking and priming: The critical role of task relevance
    James T Enns
    University of British Columbia
    Adv Cogn Psychol 3:211-26. 2007
    ..These findings are interpreted within the framework of a reentrant theory of visual perception. They imply that intentions can influence object formation prior to the separation of vision for perception and vision for action...
  3. pmc Apparent motion can impair and enhance target visibility: the role of shape in predicting and postdicting object continuity
    Peter J Lenkic
    Department of Psychology, University of British Columbia Vancouver, BC, Canada
    Front Psychol 4:35. 2013
    ..This finding confirms that shape congruence effects on visibility are specific to shape perception and are not due to either general alerting effects for objects in the path of a motion signal nor to low-level perceptual filling-in...
  4. doi request reprint The role of clarity and blur in guiding visual attention in photographs
    James T Enns
    Department of Psychology, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4
    J Exp Psychol Hum Percept Perform 39:568-78. 2013
    ..These findings imply that the saliency of both image clarity and image blur depends on viewers' goals. Focusing on photo content prioritizes regions of clarity whereas focusing on photo quality prioritizes attention to regions of blur...
  5. doi request reprint Attentional limits and freedom in visually guided action
    James T Enns
    Department of Psychology, University of British Columbia, Vancouver, BC, Canada
    Prog Brain Res 176:215-26. 2009
    ..These findings help clarify the conditions under which interference-free multitasking is possible and point to new challenges for research on the attentional limits of unconscious visual processing...
  6. ncbi request reprint Object substitution and its relation to other forms of visual masking
    James T Enns
    Department of Psychology, University of British Columbia, 2136 West Mall, Vancouver, BC, Canada V6T 1Z4
    Vision Res 44:1321-31. 2004
    ..Results strongly supported the predictions and pointed to a new understanding of masking based on the separate processes of object formation and object substitution...
  7. ncbi request reprint Visual binding in the standing wave illusion
    James T Enns
    Department of Psychology, University of British Columbia, Vancouver, Canada
    Psychon Bull Rev 9:489-96. 2002
    ..This illusion is therefore an excellent tool for studying recursive interactions between higher level object representations and lower level contour processes...
  8. ncbi request reprint New objects dominate luminance transients in setting attentional priority
    J T Enns
    Department of Psychology, University of British Columbia, Vancouver, Canada
    J Exp Psychol Hum Percept Perform 27:1287-302. 2001
    ..An important exception was an old item changing in contrast and polarity, which was as effective as the appearance of a new object. This indicates that search priority is biased toward object rather than situational changes...
  9. ncbi request reprint What's next? New evidence for prediction in human vision
    James T Enns
    Department of Psychology, University of British Columbia, 2136 West Mall, Vancouver, British Columbia, V6T 1Z4, Canada
    Trends Cogn Sci 12:327-33. 2008
    ..These findings combined with results of recent neurophysiology studies provide a framework for studying implicit prediction in perception...
  10. ncbi request reprint A negative compatibility effect in priming of emotional faces
    Jennifer D Bennett
    Department of Psychology, University of British Columbia, Vancouver British Columbia, Canada
    Psychon Bull Rev 14:908-12. 2007
    ..Implications for theories of the NCE are discussed...
  11. ncbi request reprint Visual masking plays two roles in the attentional blink
    J C Brehaut
    University of British Columbia, Vancouver, Canada
    Percept Psychophys 61:1436-48. 1999
    ..These results suggest that representations of the target are substituted in consciousness by that of the interruption mask when visual attention is preoccupied...
  12. ncbi request reprint The duration of a brief event in the mind's eye
    J T Enns
    Department of Psychology, University of British Columbia, Vancouver, Canada
    J Gen Psychol 126:355-72. 1999
    ..Those temporal consequences could easily subserve many of the perceptual benefits ascribed to attention for spatial and intensive properties...
  13. ncbi request reprint Separate influences of orientation and lighting in the inverted-face effect
    J T Enns
    Department of Psychology, University of British Columbia, Vancouver, Canada
    Percept Psychophys 59:23-31. 1997
    ..We propose that the identification of a specific individual depends on configurational information, which is preserved if the image of an inverted face is mentally rotated before the identification process is begun...
  14. ncbi request reprint Search for letter identity and location by disabled readers
    J T Enns
    Department of Psychology, University of British Columbia, Vancouver
    Can J Exp Psychol 49:357-67. 1995
    ..Thus, a reading-related impairment is evident in both letter identification and letter location processes, even when the phonological coding of letters has been minimized...
  15. doi request reprint The modulation of visual orienting reflexes across the lifespan
    Grace Iarocci
    Department of Psychology, Simon Fraser University, Burnaby, British Columbia, Canada
    Dev Sci 12:715-24. 2009
    ....
  16. ncbi request reprint Change detection in an attended face depends on the expectation of the observer
    Erin L Austen
    Psychology, University of British Columbia, Vancouver, Canada
    J Vis 3:64-74. 2003
    ..We conclude that observer expectations critically influence the perception of single and fully attended human faces...
  17. ncbi request reprint Competition for consciousness among visual events: the psychophysics of reentrant visual processes
    V Di Lollo
    Department of Psychology, University of British Columbia, Vancouver, British Columbia, Canada
    J Exp Psychol Gen 129:481-507. 2000
    ..The model provides a more comprehensive account of all forms of visual masking than do the long-held feed-forward views based on inhibitory contour interactions...
  18. ncbi request reprint Pictorial depth and framing have independent effects on the horizontal-vertical illusion
    P A Williams
    Department of Psychology, University of British Columbia, Vancouver, Canada
    Perception 25:921-6. 1996
    ..The most important finding was that the effects of frame and depth were additive, suggesting that the illusion is determined by at least two different sets of mechanisms...
  19. ncbi request reprint Attentional requirements is visual detection and identification: evidence from the attentional blink
    J Kawahara
    Department of Psychology, University of British Columbia, Vancouver, Canada
    J Exp Psychol Hum Percept Perform 27:969-84. 2001
    ..The authors drew 2 major conclusions: (a) Attention is required in both identification and detection, and (b) 2 factors contribute to the AB, masking of T2 while attention is focused on T1 and decay of the T2 trace while unattended...
  20. ncbi request reprint Response latencies to the onset and offset of visual stimuli
    V Di Lollo
    Department of Psychology, University of British Columbia, Vancouver, Canada
    Percept Psychophys 62:218-25. 2000
    ..We conclude that the onset advantage is mediated not by sensory factors such as visible persistence, but by response programming factors that are strongly affected by contextual events...
  21. ncbi request reprint Observer pitch and roll influence: the rod and frame illusion
    Jennifer E Corbett
    Department of Psychology, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
    Psychon Bull Rev 13:160-5. 2006
    ..The results are interpreted in support of a hierarchy of influence on the RFI: Visual input is given top priority, followed by vestibular input, and then proprioceptive input...
  22. ncbi request reprint New reflections on visual search: Interitem symmetry matters!
    Wieske van Zoest
    Department of Psychology, University of British Columbia, 2136 West Mall, Vancouver, British Columbia, Canada V6T 1Z4
    Psychol Sci 17:535-42. 2006
    ..This finding is strong support for the view that visual search is guided by an analysis that considers interitem relations...
  23. doi request reprint Looking versus seeing: Strategies alter eye movements during visual search
    Marcus R Watson
    University of British Columbia, Vancouver, British Columbia, Canada
    Psychon Bull Rev 17:543-9. 2010
    ..A change in mindset, therefore, alters how oculomotor behaviors are harnessed in the service of visual search...
  24. ncbi request reprint In sight, out of mind: the role of eye movements in the rapid resumption of visual search
    Wieske van Zoest
    Department of Psychology, University of British Columbia, Vancouver, British Columbia, Canada
    Percept Psychophys 69:1204-17. 2007
    ....
  25. ncbi request reprint Are spatial selection and identity extraction separable when attention is controlled endogenously?
    Shahab Ghorashi
    Department of Psychology, University of British Columbia, 2136 West Mall, Vancouver, BC V6T1Z4, Canada
    Atten Percept Psychophys 71:1233-40. 2009
    ..Collectively, the results support the dual-pathway account of the separability of spatial selection and identity extraction...
  26. ncbi request reprint No automatic pilot for visually guided aiming based on colour
    Erin K Cressman
    School of Human Kinetics, University of British Columbia, 210 6081 University Boulevard, V6T 1Z1, Vancouver, BC, Canada
    Exp Brain Res 171:174-83. 2006
    ..This conclusion held even after baseline differences in the efficiency of processing colour-defined targets were taken into account, thereby strengthening the claim of a strongly automatic pilot for visually guided limb movements...
  27. doi request reprint Spatial cuing does not affect the magnitude of the attentional blink
    Shahab Ghorashi
    Department of Psychology, University of British Columbia, Vancouver, British Columbia, Canada
    Atten Percept Psychophys 71:989-93. 2009
    ..These results are consistent with the hypothesis that cue localization and target identification may take place along separate (dorsal and ventral) visual pathways...
  28. ncbi request reprint Visual orienting in college athletes: explorations of athlete type and gender
    Jeanette Lum
    Department of Psychology, University of British Columbia, Vancouver
    Res Q Exerc Sport 73:156-67. 2002
    ..These gender and sports-related findings are interpreted in light of the experience athletes have in the dynamic control of spatial attention...
  29. ncbi request reprint On-line control of pointing is modified by unseen visual shapes
    Erin K Cressman
    University of British Columbia, Vancouver, BC, Canada
    Conscious Cogn 16:265-75. 2007
    ..These results indicate that subliminal shapes can indeed influence the control of ongoing motor activity...
  30. ncbi request reprint The role of attention in temporal integration
    T A Visser
    Department of Psychology, University of British Columbia, 2136 West Mail, Vancouver, BC V6T 1Z4, Canada
    Perception 30:135-45. 2001
    ..They also have practical implications for use of the temporal-integration task in the assessment of group and individual differences...
  31. ncbi request reprint Attention for perception and action: task interference for action planning, but not for online control
    Geniva Liu
    Department of Psychology, Dalhousie University, Halifax B3H 4J1, NS, Canada
    Exp Brain Res 185:709-17. 2008
    ..These findings support the proposal that the planning of action shares resources with conscious tasks of perception, but that the online control of already-initiated actions does not...
  32. ncbi request reprint Global-local visual processing in high functioning children with autism: structural vs. implicit task biases
    Grace Iarocci
    Department of Psychology, Simon Fraser University, Burnaby, BC, Canada
    J Autism Dev Disord 36:117-29. 2006
    ..This suggests that autism is associated with differences in the executive control processes used to guide attention to either the global or local level, and strategies may be more "data driven"...
  33. ncbi request reprint What the hand can't tell the eye: illusion of space constancy during accurate pointing
    Romeo Chua
    School of Human Kinetics, University of British Columbia, 210 6081 University Boulevard, Vancouver, British Columbia, V6T 1Z1, Canada
    Exp Brain Res 162:109-14. 2005
    ..Results show that participants are incapable of consciously accessing the information used in pointing, even though they can see and feel their hands in action and accurate performance depends on it...
  34. doi request reprint Emotional valence and arousal interact in attentional control
    Lisa N Jefferies
    Department of Psychology, University of British Columbia, Vancouver, BC, Canada
    Psychol Sci 19:290-5. 2008
    ..We discuss implications of this valence-arousal interaction for the control of visual attention...
  35. ncbi request reprint The attentional blink: resource depletion or temporary loss of control?
    Vincent Di Lollo
    Department of Psychology, University of British Columbia, 2136 West Mall, Vancouver, B C V6T 1Z4, Canada
    Psychol Res 69:191-200. 2005
    ..This lapse in control renders the observer vulnerable to an exogenously-triggered switch in attentional set...
  36. ncbi request reprint Visual letter matching: hemispheric functioning or scanning biases?
    Jillian H Fecteau
    University of British Columbia, Canada
    Neuropsychologia 43:1412-28. 2005
    ..We concluded that two scanning biases may be in effect: (1) an automatic bias favoring items in locations relatively distant from the current focus of attention and (2) a learned bias to scan letters in a left-to-right direction...
  37. ncbi request reprint Multiple-object tracking is based on scene, not retinal, coordinates
    Geniva Liu
    Department of Psychology, University of British Columbia, Vancouver, BC, Canada
    J Exp Psychol Hum Percept Perform 31:235-47. 2005
    ..These reductions in scene coherence led to reduced tracking accuracy, confirming that tracking is accomplished using a scene-based, or allocentric, frame of reference...
  38. ncbi request reprint Mislocalizations of touch to a fake hand
    Erin L Austen
    School of Human Kinetics, University of British Columbia, Vancouver, British Columbia, Canada
    Cogn Affect Behav Neurosci 4:170-81. 2004
    ..These findings indicate that the available sensory information is used flexibly to incorporate the rubber glove into the body schema...
  39. doi request reprint The hand's automatic pilot can update visual information while the eye is in motion
    Brendan D Cameron
    School of Human Kinetics, University of British Columbia, Vancouver, BC, Canada
    Exp Brain Res 195:445-54. 2009
    ..The results imply that the hand's automatic pilot is updated with new visual information even when the eye is in motion...
  40. ncbi request reprint Dual-target interference for the 'automatic pilot' in the dorsal stream
    Brendan D Cameron
    School of Human Kinetics, University of British Columbia, 6081 University Blvd, Vancouver, BC, Canada
    Exp Brain Res 181:297-305. 2007
    ..This indicates that the 'automatic pilot' is susceptible to interference from multiple visual inputs, implying that the dorsal stream is less effective at guiding actions online when multiple targets are attended...
  41. ncbi request reprint Objects on a collision path with the observer demand attention
    Jeffrey Y Lin
    University of British Columbia, Vancouver, British Columbia, Canada
    Psychol Sci 19:686-92. 2008
    ..Both effects are exaggerated when search is performed in a large projection dome (Experiment 3). These findings suggest that the human visual system prioritizes events that are likely to require a behaviorally urgent response...
  42. ncbi request reprint Negative compatibility or object updating? A cautionary tale of mask-dependent priming
    Alejandro Lleras
    Department of Psychology, University of British Columbia, Vancouver, BC, Canada
    J Exp Psychol Gen 133:475-93. 2004
    ..In this account, the NCE reflects the updating of perceptual objects, including their links to responses closely associated with those objects...
  43. ncbi request reprint Decoupling stimulus duration from brightness in metacontrast masking: data and models
    Vincent Di Lollo
    Department of Psychology, University of British Columbia, Vancouver, BC, Canada
    J Exp Psychol Hum Percept Perform 30:733-45. 2004
    ..It is tentatively suggested that different underlying mechanisms may mediate the U-shaped and monotonic functions obtained with increasing durations of target and mask, respectively...
  44. ncbi request reprint Unique temporal change is the key to attentional capture
    Adrian Mühlenen
    University of British Columbia, Vancouver, British Columbia, Canada
    Psychol Sci 16:979-86. 2005
    ..These results highlight the importance of considering both space and time in studies of attentional capture; the most effective stimulus is unique in both dimensions...
  45. ncbi request reprint Target detection and localization in visual search: a dual systems perspective
    Geniva Liu
    Department of Psychology, University of British Columbia, Vancouver, British Columbia, Canada
    Percept Psychophys 65:678-94. 2003
    ..This is consistent with direct localization's having greater dependence on the dorsal visual system than either target detection or indirect localization...
  46. ncbi request reprint Influence of inter-item symmetry in visual search
    Alexa B Roggeveen
    Department of Psychology, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
    Spat Vis 17:443-64. 2004
    ..Possible reasons for the unequal contributions of target-distractor and distractor-distractor relations are discussed...
  47. doi request reprint The bicycle illusion: sidewalk science informs the integration of motion and shape perception
    Michael E J Masson
    Department of Psychology, University of Victoria, Victoria, British Columbia, Canada
    J Exp Psychol Hum Percept Perform 35:133-45. 2009
    ..The bicycle illusion provides a unique opportunity for studying the interactions between shape and motion perception...
  48. ncbi request reprint Hemisphere differences in conscious and unconscious word reading
    Jillian H Fecteau
    University of British Columbia, Canada
    Conscious Cogn 13:550-64. 2004
    ..These results suggest that the left hemisphere advantage for word reading holds only for explicit measures; unconscious word reading is much more balanced between the hemispheres...
  49. ncbi request reprint Locally oriented perception with intact global processing among adolescents with high-functioning autism: evidence from multiple paradigms
    Laurent Mottron
    Clinique spécialisée des Troubles Envahissants du Développement, Hôpital Rivière des Prairies, Montreal, Canada
    J Child Psychol Psychiatry 44:904-13. 2003
    ....
  50. ncbi request reprint Task switching mediates the attentional blink even without backward masking
    Jun ichiro Kawahara
    Department of Psychology, Hiroshima University, Higashi, Hiroshima, Japan
    Percept Psychophys 65:339-51. 2003
    ..We suggest that overlearned stimuli are encoded in a form that, while maskable, decays relatively slowly, thus outlasting the delay due to reconfiguration and avoiding the AB deficit...
  51. ncbi request reprint Consequences of display changes during interrupted visual search: rapid resumption is target specific
    Alejandro Lleras
    Department of Psychology and Beckman Institute, University of Illinois at Urbana Champaign, Urbana, Illinois 61820, USA
    Percept Psychophys 69:980-93. 2007
    ..These results point to the target specificity of rapid resumption and are consistent with reentrant theories of visual awareness...
  52. ncbi request reprint How many locations can be selected at once?
    Steven L Franconeri
    Department of Psychology, Northwestern University, IL 60208, USA
    J Exp Psychol Hum Percept Perform 33:1003-12. 2007
    ..But when the selection regions could be coarser, up to 6-7 locations could be selected. The authors discuss potential mechanisms underlying the selection of multiple locations and review the evidence for fixed limits in visual attention...
  53. ncbi request reprint Differences in visual orienting between persons with Down or fragile X syndrome
    Tara Flanagan
    Department of Educational Psychology, McGill University, Montreal, Que, Canada
    Brain Cogn 65:128-34. 2007
    ..The group differences in reflexive orienting at the low MA level reinforce the practice of separating etiologies and highlight the contribution of rudimentary attentional processes in the study of individuals with mental retardation...
  54. ncbi request reprint The path of least persistence: object status mediates visual updating
    Cathleen M Moore
    Department of Psychology, Pennsylvania State University, University Park, PA 16870, USA
    Vision Res 47:1624-30. 2007
    ..Providing a scene-based reason for the discontinuity allows the object representation to be maintained, and thus does not result in a disruption of the updating process...
  55. ncbi request reprint How much like a target can a mask be? Geometric, spatial, and temporal similarity in priming: a reply to Schlaghecken and Eimer (2006)
    Alejandro Lleras
    Department of PsychologyUniversity of Illinois at Urbana Champaign, Champaign, IL 61820, USA
    J Exp Psychol Gen 135:495-500. 2006
    ..Briefly, target-mask similarity determines how motor preparation is accumulated during the prime-mask sequence...
  56. ncbi request reprint The edge complex: implicit memory for figure assignment in shape perception
    Mary A Peterson
    Department of Psychology, University of Arizona, 1503 E University Blvd, Tucson, AZ 85721, USA
    Percept Psychophys 67:727-40. 2005
    ....
  57. ncbi request reprint The attentional blink is not a unitary phenomenon
    Jun ichiro Kawahara
    Hiroshima University, Hiroshima, Japan
    Psychol Res 70:405-13. 2006
    ..Resource-depletion was ruled out as a viable account. The effect of attentional switching was handled naturally by the TLC model, while bottleneck models offered the best account of the effect of backward masking...
  58. ncbi request reprint Rapid resumption of interrupted visual search. New insights on the interaction between vision and memory
    Alejandro Lleras
    University of Illinois at Urbana Champaign, Champaign, IL 61820, USA
    Psychol Sci 16:684-8. 2005
    ..In this view, rapid resumption occurs because a hypothesis based on a previous glance of the scene can be tested very rapidly in a subsequent glance, given that the initial hypothesis-generation step has already been performed...
  59. ncbi request reprint Object updating and the flash-lag effect
    Cathleen M Moore
    Department of Psychology, Pennsylvania State University, University Park, PA 16802, USA
    Psychol Sci 15:866-71. 2004
    ..Direct evidence for this proposal is provided by the results for a corollary perceptual feature of the disruption in object continuity: the perception of two objects, rather than only one, on the motion path...
  60. ncbi request reprint Voluntary orienting among children and adolescents with Down syndrome and MA-matched typically developing children
    Karen J Goldman
    David Yellin College of Education, Jerusalem, Israel
    Am J Ment Retard 110:157-63. 2005
    ..This finding is further evidence that the efficiency of many of the primary components of attention among persons with Down syndrome is consistent with their developmental level...