Roi Cohen Kadosh PhD

I received my BA and PhD (direct track) at Ben-Gurion University. I started to work with Prof. Henik as a research assistant during my BA. My research focused on mental operations and neural structures involved in number and magnitude processing. My research included neuroimaging and neurophysiology techniques such as fMRI, ERP and TMS, and studies dealing with patients and the normal population.

Currently I am a research fellow in the Visual Cognition group (headed by Prof. Vincent Walsh) Institute of Cognitive Neuroscience & Dept of Psychology, University College London. My current work focus on the issue of numerical cognition, parietal lobe functions and their role in numerical and magnitude representation, response selection, cognitive control and prefrontal functions, and the neurocognitive mechanisms of synaesthesia and possible connections with cross-modal interaction and awareness.

other links: Roi's website

email: roi.cohenkadosh@psy.ox.ac.uk

Recent Publications

  • Cohen Kadosh, R. (in press). The Laterality Effect: Myth or Truth? Consciousness and Cognition.
  • Cohen Kadosh, R., Brodsky, W., Levin, M., & Henik, A. (in press). Mental representation: What can pitch tell us about the distance effect? Cortex (Special issue on Numbers, Space, and Action).
  • Cohen Kadosh, R., Cohen Kadosh, K., & Henik, A. (in press). When Brightness Counts: The Neuronal Correlate of Numerical-Luminance Interference. Cerebral Cortex.
  • Cohen Kadosh, R., Lammertyn, J., & Izard, V. (in press). Are numbers special? An overview of chronometric, neuroimaging, developmental and comparative studies of magnitude representation. Progress in Neurobiology.
  • Cohen Kadosh, R., Tzelgov, J., & Henik, A. (2008). A Colorful Walk on the Mental Number Line: Striving for the Right Direction. Cognition, 106, 564-567.
  • Cohen Kadosh, R., Tzelgov, J., & Henik, A. (2008). A Synesthetic Walk on the Mental Number Line: The Size Effect. Cognition, 106, 548-557.
  • Cohen Kadosh, R., Cohen Kadosh, K., & Henik, A. (2007). The Neuronal Correlate of Bi-directional Synaesthesia: A Combined ERP and fMRI Study. Journal of Cognitive Neuroscience, 19, 2050-2059.
  • Cohen Kadosh, R., Cohen Kadosh, K., Kaas, A., Henik, A., & Goebel, R. (2007). Notation-Dependent and -Independent Representations of Numbers in the Parietal Lobes. Neuron, 53, 307-314. -Accompanying Preview by Ansari, D. (2007). Does the Parietal Cortex Distinguish between "10," "Ten," and Ten Dots? Neuron, 53, 165-167. -"Highlight" article by Welberg, L. (2007). What Counts? Nature Reviews Neuroscience, 8, 168.
  • Cohen Kadosh, R., Cohen Kadosh, K., Linden, D., Gevers, W., Berger, A., & Henik, A. (2007). The Brain Locus of Interaction between Number and Size: A Combined Functional Magnetic Resonance Imaging and Event-Related Potential Study. Journal of Cognitive Neuroscience, 19, 957-970.
  • Cohen Kadosh, R., Cohen Kadosh, K., Schumann, T., Kaas, A., Goebel, R., Henik, A., & Sack, A. T. (2007). Virtual Dyscalculia Induced by Parietal Lobe TMS Impairs Automatic Magnitude Processing. Current Biology, 17, 689-693.
  • Cohen Kadosh, R., & Henik, A. (2007). Can Synaesthesia Research Inform Cognitive Science? Trends in Cognitive Sciences, 11, 177-184.
  • Cohen Kadosh, R., Henik, A., & Rubinsten, O. (2007). The Effect of Orientation on Number Word Processing. Acta Psychologica, 124, 370-381.
  • Cohen Kadosh, R., Henik, A., & Walsh, V. (2007). Small is bright and big is dark in synaesthesia. Current Biology, 19, R834-R835.
  • Cohen Kadosh, R., & Walsh, V. (2007). Dyscalculia. Current Biology, 17, R946-R947.
  • Cohen Kadosh, R., Walsh, V., & Henik, A. (2007). Selecting Between Intelligent Options. Behavioral and Brain Sciences, 30, 155.
  • Cohen Kadosh, R., & Henik, A. (2006). A Common Representation for Semantic and Physical Properties: A Cognitive-Anatomical Approach. Experimental Psychology, 53, 87-94.
  • Cohen Kadosh, R., & Henik, A. (2006). Color Congruity Effect: Where Do Colors and Numbers Interact in Synesthesia? Cortex (Special issue on Synesthesia), 42, 259-263.
  • Cohen Kadosh, R., & Henik, A. (2006). When a Line is a Number: Color Yields Magnitude Information in a Digit-Color Synesthete. Neuroscience (rapid report), 137, 3-5.
  • Cohen Kadosh, R., & Walsh, V. (2006). Cognitive Neuroscience: Rewired or Crosswired Brains? Current Biology, 16, R962-R963.
  • Cohen Kadosh, R., Henik, A., Rubinsten, O., Mohr, H., Dori, H., Van de Ven, V., Zorzi, M., Hendler, T., Goebel, R., & Linden, D. (2005). Are Numbers Special? The Comparison Systems of the Human Brain Investigated by fMRI. Neuropsychologia, 43, 1238-1248.
  • Cohen Kadosh, R., Sagiv, N., Linden, D. E. J., Robertson, L. C., Elinger, G., & Henik, A. (2005). When Blue is Larger than Red: Colors Influence Numerical Cognition in Synesthesia. Journal of Cognitive Neuroscience, 17, 1766-1773.
  • Cohen Kadosh, R., Fuentes, L., Catena, A., & Henik, A. (submitted). Playing with One's Mind; Being a Synaesthete.
  • Cohen Kadosh, R., Henik, A., & Rubinsten, O. (submitted). Are Arabic and Word Numbers Processed in Different Ways?
  • Faran, Y., Anaki, D., Hoffman, Y., Klipper, K., Henik, A., Nemets, B., Cohen Kadosh, R., Schwebel, M., & Ben-Shalom, D. (submitted). Is the Hippocampus Important for the Process of Familiarity? Evidence from a Patient with a Fornix Lesion.
  • Gebuis, T., Cohen Kadosh, R., de Haan, E., & Henik, A. (submitted). Automatic Quantity Processing in 5-Year Olds.
  • Ron-Kaplan, I., Hochman, H., Cohen Kadosh, R., & Henik, A. (submitted). Effect of Associative Neighbors on Word Processing: An fMRI Study.

Recent Presentations (* Oral Papers)

  • Cohen Kadosh, R., Cohen Kadosh, K., & Henik, A. (2006). When a Line is a Number: Color Yields Magnitude Information in a Digit-Color Synesthete. Presented at the 13th Annual Meeting of the Cognitive Neuroscience Society, San-Francisco, April.
  • *Cohen Kadosh, K., Cohen Kadosh, R., Schumann, T., Kaas, A., Goebel, R., Henik, A., & Sack, A. T. (2006). Virtual Dyscalculia: A Combined TMS and fMRI Study. Presented at the 13th Annual Meeting of the Cognitive Neuroscience Society, San-Francisco, April.
  • *Cohen Kadosh, R., Levin, M., Brodsky, W., & Henik, A. (2006). Mental Representation: Domain Specific or Task Specific? Presented at the Numerical Cognition Workshop, Achva Academic College, March.
  • Cohen Kadosh, R., Fuentes, L., Catena, A. & Henik, A. (2006). Playing with One's Mind; Being a Synesthete. Presented at the Annual Retreat of the Zlotowski Center for Neuroscience, Dead Sea, March.
  • Cohen Kadosh, K., Cohen Kadosh, R., & Henik, A. (2006). When a Line is a Number: The Neuronal Correlate of Bi-directionality in a Digit-Color Synesthete. Presented at the Israeli Society for Neuropsychology. Jerusalem, February.
  • *Cohen Kadosh, R., Cohen Kadosh, K., Schumann, T., Kaas, A., Goebel, R., Henik, A., & Sack, A. T. (2006). Virtual Dyscalculia: A Combined TMS and fMRI Study. Presented at the Israeli Society for Neuropsychology. Jerusalem, February.
  • Levin, M., Cohen Kadosh, R., Brodsky, W., Tadir, M. & Henik, A. (2006). Pitch Comparison and its Relation to Spatial and Numerical Processing. Presented at the Israeli Society for Neuropsychology. Jerusalem, February.
  • Ron-Kaplan, I., Hochman, H., Cohen Kadosh, R., & Henik, A. (2006). The Effect of Associative Neighbors on Word Processing: an fMRI Study. Presented at the Israeli Society for Neuropsychology. Jerusalem, February.
  • *Cohen Kadosh, R., Linden, D., Cohen Kadosh, K., & Henik, A. (2005). Late Resolution of Conflicts in the Brain: Evidence for Parallel Comparison Systems. Presented at the 14th Conference of the European Society for Cognitive Psychology, Leiden, September.
  • *Henik, A. & Cohen Kadosh, R. (2005). Implicit Bi-Directionality in Synesthesia. Presented at the Conference of the European Society for Cognitive Psychology, Leiden, September.
  • *Henik, A. & Cohen Kadosh, R. (2005). When Blue is Larger than Red: Color Modulates Magnitude Judgments. Presented at the First International Conference on Art and Synesthesia, Almeria, July.
  • *Cohen Kadosh, R., Linden, D., Cohen Kadosh, K., & Henik, A. (2005). Evidence for Parallel Comparison Systems: A Functional Magnetic Resonance Imaging Study. Presented at the NUMBRA / ESCOP Summer School "Neuroscience of number processing", Erice, July.
  • Cohen Kadosh, R., Linden, D., Cohen Kadosh, K., & Henik, A. (2005). Early vs. Late Resolution of Conflicts: Paying Attention to the Motor Cortex. Presented at the 12th Annual Meeting of the Cognitive Neuroscience Society, New York, April.
  • Cohen Kadosh, K., Cohen Kadosh, R., Linden, D., Berger, A. & Henik, A. (2005). Same Place, Same Time? Tackling the Comparison Mechanism in the Brain with ERP and fMRI. Presented at the 12th Annual Meeting of the Cognitive Neuroscience Society, New York, April.
  • Cohen Kadosh, R., Henik, A., Rubinsten, O., Mohr, H., Dori, H., Van de Ven, V., Zorzi, M., Hendler, T., Goebel, R., & Linden, D. (2005). Are Numbers Special? The Comparison Systems of the Human Brain Investigated by fMRI. Presented at the 6th Annual Meeting of the German Neuroscience Society, Goettingen, February.
  • *Henik, A., Cohen Kadosh, R., & Tadir, M. (2004). Colors Affect Numerical Processing in Synesthesia. Presented at the 4th Annual National Conference of the American Synesthesia Association, Berkeley, November.
  • *Henik, A. & Cohen Kadosh, R. (2004). Colors Affect Numerical Processing in Synesthesia. Presented at the Annual Conference of the Israeli Society for Cognitive Psychology, Ramat-Gan, October.
  • *Cohen Kadosh, R., Sagiv, N., Linden, D. E. J., Robertson, L., Elinger, G., & Henik, A. (2004). When Blue is Larger than Red - Implicit Activation of Magnitude in Synesthesia. Presented at the 8th Annual Meeting of the Association for the Scientific Study of Consciousness, Antwerp, June.
  • Cohen Kadosh, R., Sagiv, N., Elinger, G., Robertson, L., Linden, D. E. J., & Henik, A. (2004). The Magnitude of Colors and Numbers in Synesthesia. Poster presented at the 11th Annual Meeting of the Cognitive Neuroscience Society, San-Francisco, April.
  • *Cohen Kadosh, R., Sagiv, N., Linden, D. E. J., Robertson, L., Elinger, G., & Henik, A. (2004). When Blue is Larger than Red - Magnitude Comparisons in Synesthesia. Presented at the Annual Retreat of the Zlotowski Center for Neuroscience, Jerusalem, February.
  • Gebuis, T., Cohen Kadosh, R., Sack, A., Kohler, A., Goebel, R., & Linden, D. E. J. (2003). Magnitude Comparison in the Intraparietal Sulcus, a TMS Study. Poster presented at the Annual Max-Planck House Symposia, Frankfurt, December.
  • Cohen Kadosh, R., Henik, A., & Rubinsten, O. (2003). Are Arabic and Word Numbers Processed in Different Ways? Poster presented at the 13th Conference of the European Society for Cognitive Psychology, Granada, September.
  • Cohen Kadosh, R., Henik, A., Rubinsten, O., Dori, H., Bloch-David, Y., Mohr, H., Van de Ven, V., Zorzi, M., Hendler, T., & Linden, D. (2003). Are Numbers Special? A Common System for Numerical and Physical Comparisons in the Parietal Lobes. Poster presented at the 10th Annual Meeting of the Cognitive Neuroscience Society, New York, March.
  • *Cohen Kadosh, R., Henik, A., Rubinsten, O., Dori, H., Bloch-David, Y., Mohr, H., Van de Ven, V., Zorzi, M., Hendler, T., & Linden, D. (2003). Are Numbers Special? A Common System for Numerical and Physical Comparisons in the Parietal Lobes. Presented at the Annual Retreat of the Zlotowski Center for Neuroscience, Jerusalem, February.

Invited talks

  • "Numbers in the brain: Special and not abstract?". Invited talk at the Zlotowski Center for Neuroscience, Ben-Gurion University. Beer-Sheva, December 2007.
  • "Posthypnotic suggestion induces synaesthetic cross-modal sensation in the absence of abnormal neuronal connections". Invited talk at the Rank Prize Funds (Mini-Symposium on Representations of the Visual World in the Brain). Cumbria, December 2007.
  • "Specialisation in the Human Brain: The Case of Numbers ". Invited talk at the Faculty of Neuroscience and Education, University of Cambridge. Cambridge, October 2007.
  • "Specialisation in the Human Brain: The Case of Numbers ". Invited talk at the Department of Psychology, Utrecht University. Utrecht, October 2007.
  • "Virtual Dyscalculia after TMS to the Right Parietal Lobe: A Combined FMRI and Neuronavigated TMS Study". Invited talk at the Batsheva de Rothschild Interdisciplinary Workshop on Transcranial Magnetic Stimulation (TMS). Ramat Gan, June 2007.
  • "Magnitudes Processing in the Human Brain". Invited talk at the Annual Meeting of the Belgian Association of Psychological Sciences: "The Development of Mind and Behavior". Leuven, June 2007.
  • "Numerical Processing in the Parietal Lobes". Invited talk at the Summer School on Transcranial Magnetic Stimulation in Cognition. London, May 2007.
  • "The Neuronal Correlate of the Interaction between Numbers and Other Magnitudes in the Human Brain". Invited talk at the School of Psychology, University of Liverpool, Liverpool, February 2007.
  • "A Synesthetic Walk on the Mental Number Line: The Size Effect ". Invited talk at the Department of Experimental Psychology, Ghent University, Ghent, March 2006.
  • "Late Resolution of Conflicts in the Brain: Evidence for Parallel Comparison Systems". Invited talk at the Department of Experimental Psychology, Ghent University, Ghent, February 2005.
  • "When Yellow is Larger than Red - Implicit Activation of Magnitude in Synesthesia". Invited talk at the Department of Psychology, Vrije Universiteit Amsterdam, June 2004.