Árni Kristjánsson

 

Description: Description: Description: rni.jpg

Department of Psychology

Univerity of Iceland
Gimli v. Sturlugötu
101, Reykjavik, Iceland

Tel:

+354 5255198

Fax:

+354 5526806

 

 

email:

ak@hi.is

 

 


Vice-Chair and Associate Professor of Psychology

Associate member of the Institute of Cognitive Neuroscience, University College London


CV


Publications

 



Research Interests


I am interested in visual Perception in general.

 

The allocation of visual attention to a given visual scene is a major topic of interest for me. In particular I am interested I how recent history (i.e. what we have recently perceived affects our subsequent perception (sometimes called priming effects).

 

I have also done research into the interplay of visual attention and eye movements as well as other projects pertaining to visual perception such as motion perception and to assessing what types of features our visual system is particularly sensitive to.

 

Other topics that I am interested in and have published research into include the Attentional Blink (in particular in regard to its spread in space and time) and the influence of surface assignment on short-term visual working memory performance


Some Publications

 

Kristjánsson. Á., Ingvarsdóttir, Á. og Teitsdóttir, U.D. (in press). Object- and feature-based priming in visual search. In press in Psychonomic Bulletin & Review.

 

Sćvarsson, S., Jóelsdóttir, S., Hjaltason, H. og Kristjánsson, Á. (in press). Repetition of distractor sets improves visual search performance in hemispatial neglect. In press in Neuropsychologia.

 

Kristjánsson, Á. og Sigurđardóttir, H.M. (in press). On the benefits of transient attention across the visual field. In press in Perception.

 

Kristjánsson, Á. (in press). “I know what you did on the last trial” – a selective review of research on priming in visual search. In press in Frontiers in Bioscience.

 

Sigurđardóttir, H.M., Kristjánsson, Á. & Driver, J. (in press). Repetition streaks increase perceptual sensitivity in brief visual search displays. In press in Visual Cognition.

 

Ruff, C.C., Kristjánsson, Á. & Driver, J. (2007). Readout from iconic memory  involves similar neural processes as selective spatial attention. Psychological Science, 18, 901-909. - PDF file

 

Kristjánsson, Á., Vuilleumier, P., Schwartz, S., Macaluso, E. & Driver, J. (2007). Neural basis for priming of pop-out revealed with fMRI. Cerebral Cortex, 17, 1612-1624.  PDF file

 

Edelman, J., Kristjánsson, Á. & Nakayama, K. (2007). The influence of object-relative visuomotor set on express saccades. The Journal of Vision, 7(6):12, 1-13. - PDF file

Kristjánsson, Á. (2007). Saccade landing point selection and the competition account of pro- and antisaccade generation: The involvement of visual attention – A review. Scandinavian Journal of Psychology, 48, 97-113. PDF file

Geng, J.J., Eger, E., Ruff, C., Kristjánsson, Á., Rothsthein, P. & Driver, J. (2006). On- line attentional selection from competing stimuli in opposite visual fields: Effects on human visual cortex and control processes. Journal of Neurophysiology, 96, 2601-2612. - PDF file

Kristjánsson, Á. (2006). Surface assignment modulates object-formation for visual short-term memory. Perception, 35, 865-881. - PDF file

Kristjánsson, Á. (in press). Saccade landing point selection and the competition account of pro- and antisaccade generation: The involvement of visual attention – A review. In the press in Scandinavian Journal of Psychology.

 

Kristjánsson, Á. (2006). Simultaneous priming along multiple dimensions in visual search task. Vision Research, 46, 2554–2570. -  PDF file

Kristjánsson, Á. (2006). Rapid learning in attention shifts - A review. Visual Cognition, 13, 324-362. - PDF file


Kristjánsson, Á., Vuilleumier, P., Malhotra, P., Husain, M., & Driver, J. (2005). Priming of color and position during visual search in unilateral spatial neglect. Journal of Cognitive Neuroscience, 17, 859-873. - PDF file

Wang, D., Kristjánsson, Á, & Nakayama, K. (2005). Efficient visual search without top-down or bottom-up guidance. Perception & Psychophysics, 67, 239-253. - PDF file

Kristjánsson, Á., Vandenbroucke, M. og Driver, J. (2004). When pros become cons for anti versus prosaccades. Experimental Brain Research, 155, 231-244.- PDF file

Nakayama, K., Maljkovic, V. & Kristjánsson, Á. (2004) Short term memory for the rapid deployment of visual attention. Í M.S. Gazzaniga (ritstj.), The Cognitive Neurosciences, 3rd edition. Cambridge, MA, USA: MIT Press.

Kristjánsson Á. & Nakayama K. (2003). A primitive memory system for the deployment of transient attention. Perception & Psychophysics, 65, 711-724. - PDF file

Kristjánsson Á. & Nakayama K. (2002). The attentional blink in space and time. Vision Research, 42, 2039-2050. - PDF file

Kristjánsson, Á., Wang, D. & Nakayama K. (2002). The role of priming in conjunctive visual search. Cognition, 85, 37-52. - PDF file

Kristjansson, A., Chen, Y. & Nakayama, K. (2001). Less attention is more in the preparation of antisaccades, but not prosaccades. Nature Neuroscience, 4, 1037-1042. - PDF file

Kristjansson, A., Mackeben, M. & Nakayama, K. (2001). Rapid, object based learning in the deployment of transient attention. Perception, 20, 1375-1387 - PDF file

Kristjansson, A. (2001) Increased sensitivity to speed changes during adaptation to first-order, but not to second-order motion. Vision Research, 41, 1825-1832. - PDF file

Kristjansson, A. & Tse, P.U. (2001). Curvature discontinuities are cues for rapid shape analysis.
Perception & Psychophysics, 63, 390-403. - PDF file

Kristjansson, A. (2000). In search of remembrance: Evidence for memory in visual search.
Psychological Science, 11, 328-332. - PDF file

Wang D.L., A. Kristjansson, and K. Nakayama (2001). Efficient visual search without top-down or bottom-up guidance: A putative role for perceptual organization. Technical Report 26, Center for Cognitive Science, The Ohio State University, Columbus, Ohio, USA. - PDF file


Presentations at international conferences

Kristjánsson, Á & Driver, J. (2005). Priming in vision: Target repetition effects, context effects and role reversal effects. European conference on visual perception, La Coruna, Spain. Published in Perception, 34 (Suppl.) .

Kristjánsson, Á.,, Ruff, C. & Driver, J. (2005). Commonalites between Iconic Memory and attentional cueing. Meeting of the Vision sciences Society, Sarasota (FL), USA .

Kristjánsson, Á., Vuilleumier, P., Husain, M., Macaluso, E. & Driver, J. (2004). Neural correlates of priming in vision: Evidence from Neuroimaging and Neurospsychology. European conference on visual perception, Budapest, Hungary . Published in Perception, 33 (Suppl.).

Kristjánsson, Á. (2004). Neural correlates of priming in vision. Human Frontiers Science Program Annual Awardess Meeting, Hakone, Japan .

Kristjánsson, Á (2004). Surface assignment modulates object formation for visual short term memory. Meeting of the Vision sciences Society, Sarasota (FL), USA. Published in Journal of Vision, 4 (Suppl.).

Kristjánsson, Á. (2003). When pros become cons for anti versus prosaccades. Annual NTT-UCL workshop, Kyoto, Japan .

Kristjánsson, A., Vandenbroucke, M.W.G. & Driver, J. (2003). When pros become cons for anti versus prosaccades. European Conference on Visual Perception, Paris, France. Published in Perception, 32 (Suppl.).

Kristjánsson, A., Vuilleumier, P., Husain, M., Malhotra, P. & Driver, J. (2003). Intact colour and position priming in patients with symptoms of neglect. Annual Meeting of the Cognitive Neurosceience Society, New York, USA. Published in Journal of Cognitive Neuroscience, 15 (Suppl.).

Kristjánsson, A. (2002). Apparent depth modulates object formation for visual short term memory. European conference on visual perception, Glasgow, Scotland. Published in Perception, Vol. 31 (Suppl.).

Kristjánsson, A., Wang, D. & Nakayama, K. (2001). The role of priming in conjunctive visual search. Meeting of the Vision sciences Society, Sarasota (FL), USA. Published in Journal of Vision, 1 (Suppl.).

Edelman, J., Kristjánsson, A. & Nakayama, K. (2001). Facilitation of saccade target selection by object-centered priming. Meeting of the Vision sciences Society, Sarasota (FL), USA. Published in Journal of Vision, 1 (Suppl.).

Kristjánsson, A., Chen, Y. & Nakayama, K. (2000). Less attention is more in the preparation of antisaccades. Workshop on Object perception and memory, New Orleans, USA .

Kristjánsson, A. & Nakayama, K. (2000). One step, feature based learning in the deployment of transient attention. European conference on visual perception, Groeningen, The Netherlands. Published in Perception, Vol. 30 (Suppl.).

Kristjánsson, A., Chen, Y. & Nakayama, K. (2000). Less attention is more in the preparation of antisaccades. ARVO, Ft. Lauderdale, USA. Published in Investigative Ophthalmology & Vision Science, 41 (Suppl.).

Nakayama, K., Kristjansson, A., & Wang, D. L. (2000). Efficient visual search not explained by local feature mechanisms or top down guidance. ARVO, Ft. Lauderdale, USA. Published in Investigative Ophthalmology & Vision Science, 41 (Suppl.).

Kristjánsson, A., Wang, D. & Nakayama, K. (1999). Efficient visual search without top-down or bottom-up guidance, Workshop on Object perception and memory, Los Angeles, USA .

Kristjánsson, A., Chen, Y. & Nakayama, K. (1999). Different effects of a secondary task on saccades and antisaccades. European conference on visual perception, Trieste, Italy . Published in Perception, Vol. 29 (Suppl.).

Kristjánsson, A., Mackeben, M. & Nakayama, K. (1999). Exogenous attention shows adaptation to local and changing validities within a spatial cue. ARVO, Ft. Lauderdale, USA. Published in Investigative Ophthalmology & Vision Science, 40 (Suppl.).

Chen, Y., McPeek, R., Intriligator, J., Kristjánsson, A. & Holzman, P. (1999). Attentional requirements for smooth pursuit. ARVO, Ft. Lauderdale, USA . Published in Investigative Ophthalmology & Vision Science, 40 (Suppl.).