Publications

(all files are in Adobe Acrobat PDF format, unless stated otherwise)

Papers

Przybyszewski A.W., Kagan I., Snodderly D.M. (2014). Primate area V1: largest response gain for receptive fields in the straight-ahead direction. Neuroreport 25(14): 1109-1115.
[reprint]

Kagan I., Hafed Z.M. (2013). Active vision: microsaccades direct the eye to where it matters most. Current Biology 23(17): R712 - R714.
[reprint]

Wilke M., Kagan I., Andersen R.A. (2013). Effects of pulvinar inactivation on spatial decision-making between equal and asymmetric reward options. J Cogn Neurosci. 25(8): 1270-1283.
[reprint]

Kagan I. (2012). Microsaccades and image fading during natural vision. (http://www.jneurosci.org/content/32/27/9194/reply) Electronic response to McCamy et al. Microsaccadic efficacy and contribution to foveal and peripheral vision. J Neurosci 2012; 32(27):9194-9204

Wilke M.*, Kagan I.*, Andersen R.A. (2012). Functional imaging reveals rapid reorganization of cortical activity after parietal inactivation in monkeys. Proc Natl Acad Sci U S A. 109(21): 8274-8279. http://www.pnas.org/content/early/2012/05/03/1204789109
[reprint]    [supporting information]

Kagan I. (2012). Active vision: fixational eye movements help seeing space in time. Current Biology 22(6): R186 - R188. http://dx.doi.org/10.1016/j.cub.2012.02.009
[reprint]

Iyer A., Lindner A., Kagan I., Andersen R.A. (2010). Motor preparatory activity in posterior parietal cortex is modulated by subjective absolute value. PLOS Biology. 8(8): e1000444. doi:10.1371/journal.pbio.1000444.
[online open access article]
[Caltech press release]    [related ABC News article]   

Lindner A., Iyer A., Kagan I., Andersen R.A. (2010). Human posterior parietal cortex plans where to reach and what to avoid. Journal of Neuroscience. 30(35): 11715-11725.
[reprint]    [supplementary information]

Kagan I., Iyer A., Lindner A., Andersen R.A. (2010). Space representation for eye movements is more contralateral in monkeys than in humans. Proc Natl Acad Sci U S A. 107(17): 7933-7938. Epub 2010 Apr 12.
[online open access article]    [supporting information]

Snodderly D. M., Kagan I., Gur M. (2010). Linearity and selectivity of neuronal responses in awake visual cortex. Importance of the cell sample. Journal of Vision Reply to: The linearity and selectivity of neuronal responses in awake visual cortex, Chen et al. (2009)
[eLetter]

Kagan I., Gur M., Snodderly D. M. (2008). Saccades and drifts differentially modulate neuronal activity in V1: Effects of retinal image motion, position, and extraretinal influences. Journal of Vision 8(14):19: 1-25. http://www.journalofvision.org/8/14/19/
[reprint]     [supplement]

Gur M., Kagan I., Snodderly D.M. (2005). Orientation and direction selectivity of neurons in V1 of alert monkeys: functional relationships and laminar distributions. Cerebral Cortex 15(8), 1207-1221
[reprint]    

Kagan I., Shik M.L. (2004). How the mesencephalic "locomotor region" recruits hindbrain neurons. Progress in Brain Research 143: 221-230
[preprint]
In: Brain Mechanisms for the Integration of Posture and Movement

Kagan I., Gur M., Snodderly D.M. (2002). Spatial organization of receptive fields of V1 neurons of alert monkeys: comparison with responses to gratings. Journal of Neurophysiology 88: 2557-2574
[reprint]     [better resolution figures]
ResearchIndex entry

Snodderly D.M., Kagan I., Gur M. (2001). Selective activation of visual cortex neurons by fixational eye movements: Implications for neural coding. Visual Neuroscience 18 (2): 259-277
[reprint]     [better resolution figures]
ResearchIndex entry

Bar-Gad I., Kagan I., Shik M.L. (1999). Behavior of hindbrain neurons during the transition from rest to evoked locomotion in a newt. Progress in Brain Research 123: 285-294
[abstract]
In: Peripheral and Spinal Mechanisms in the Neural Control of Movement


In preparation

Kagan I., Wilke M., Lindner A., Iyer A., Andersen R.A. Time-courses of fMRI BOLD signals in frontal and parietal cortex reflect monkeys' decisions in a free-choice oculomotor task. In preparation.

Kagan I., Iyer A., Lindner A., Andersen R.A. Event-related fMRI of delayed response saccades in monkeys and humans: spatially-specific and non-specifc preparatory signals. In preparation.

Kagan I., Wilke M., Andersen R.A. Internal biases and reward modulation in spatial decisions. In preparation.

Kagan I., Gur M., Snodderly D.M. Stimulus-response relationships of complex cells in V1 of behaving monkeys. In preparation.


Selected abstracts

Wilke M., Kagan I., Andersen R.A. BOLD responses during pharmacologically induced hemi-neglect in the parietal cortex. SfN 2009.

Kagan I., Wilke M., Andersen R.A. fMRI dynamics in monkeys reflect spatial decisions and preferences in free-choice and reward context tasks. SfN 2009.

Wilke M., Kagan I., Andersen R.A. BOLD signal changes associated with reversible visual neglect in monkeys. Japan Neuroscience Society 2009.

Kagan I., Wilke M., Andersen R.A. (2009). BOLD fMRI dynamics in monkeys reflects spatial decisions in free-choice and reward context tasks. Japan Neuroscience Society 2009.

Snodderly D.M., Kagan I., Gur M. (2008). Stimulus-response relationships of complex cells in V1 of behaving monkeys. SfN 2008.

Lindner A., Kagan I., Iyer A., Andersen R.A. (2008). Prospective coding of alternative actions in human parietal and premotor cortex. FENS 2008.

Kagan I., Lindner A., Iyer A., Wagner S., Andersen R.A. (2007). Time-courses of fMRI BOLD signals in frontal and parietal cortex reflect monkeys' decisions in a free-choice oculomotor task. SfN 2007.

Lindner A., Kagan I., Iyer A., O'Doherty J.P., Schultz W., Andersen R.A. (2007). Expected reward magnitude modulates fMRI-activity in monkey ventral and dorsal cortical streams and the striatum during a goal-directed saccade task. SfN 2007.

Kagan I., Lindner A., Iyer A., Wagner S., Andersen R.A. (2007). Time-courses of fMRI BOLD signals in frontal and parietal cortex reflect monkeys' decisions in a free-choice oculomotor task. SfN 2007.

Snodderly D.M., Kagan I., Gur M. (2007). Modulation of neuronal activity in V1 by fixational and voluntary eye movements: Separating effects of retinal image motion, retinal image position, and extraretinal influences. SfN 2007.

Kagan I., Lindner A., Iyer A., Andersen R.A. (2007). fMRI of eye movements in monkeys and humans: spatially-specific and non -specific preparatory signals for memory- and visually-guided saccades. ECEM2007.

Kagan I., Iyer A., Lindner A., Andersen R.A. (2007) Event-related fMRI of goal-directed behavior in alert monkeys and humans: spatially-specific and nonspecific signals during delayed response tasks. Cosyne 2007.
[abstract]     [poster]

Kagan I., Iyer A., Lindner A., Wagner S., Andersen R.A. (2006) Event-related fMRI in alert behaving monkeys and humans during visually-guided and memory saccades. SfN 2006.
[abstract]     [talk - flash]

Kagan I., Iyer A., Lindner A., Andersen R.A. (2005) Functional MRI in alert behaving monkeys during goal-directed saccades. SfN 2005.
[abstract]     [poster]

Kagan I., Gur M., Snodderly D.M. (2005) Complementary functions of saccadic, position/drift, and extraretinal responses to eye movements in V1 neurons. ASSC9 symposium: Problems of Space and Time in Perception and Action.
[abstract]     [poster]

Kagan I., Gur M., Snodderly D.M. (2004) Modeling V1 complex cells in alert monkeys. Cosyne'04: Computational & System Neuroscience.
[poster]     [abstract and extended appendix]

Kagan I., Gur M., Snodderly D.M. (2003) Position vs. saccade responses in V1 of alert monkeys. SfN 2003.
[abstract]     [talk - flash]

Gur M., Kagan I., Snodderly D.M. (2003) Early generation of stimulus specificity in V1 of alert monkeys. SfN 2003.
[abstract]

Kagan I., Przybyszewski A.W., Gur M., Snodderly D.M. (2003) Responses of macaque V1 neurons to fixational and voluntary eye movements correlate with receptive field properties. VSS 2003.
[abstract]     [poster]

Gur M., Kagan I., Snodderly D.M. (2003) Orientation selectivity in V1 of alert monkeys. VSS 2003.
[abstract]     [talk figures - ppt]

Przybyszewski A.W., Kagan I., Snodderly D.M. (2003) Eye position influences contrast responses in V1 of alert monkey. VSS 2003.
[abstract]

Kagan I., Gur M., Snodderly D.M. (2002) Diversity of responses to gratings in V1 of alert monkey. SfN 2002.
[abstract]     [poster]     [appendix]

Kagan I., Gur M., Snodderly D.M. (2002) Analysis of responses to drifting and stationary gratings in V1 of alert monkey. VSS 2002. Journal of Vision.
[abstract]     [poster]

Snodderly D.M., Kagan I., Gur M. (2002) Receptive fields and quasi-linear response modulation in V1 of alert macaques. VSS 2002. Journal of Vision.
[abstract]     [talk]

Kagan I., Gur M., and Snodderly D.M. (2001) In V1 duplex cells, the form of responses to gratings depends on temporal frequency. Neural Plasticity 8 (3): 180
[abstract]     [poster]

Snodderly D.M., Kagan I., and Gur M. (2000) Simple cells and other cells in striate cortex of alert monkeys. ARVO 2000
[abstract]     [poster text]     [poster figures]

Shik M.L., Kagan I. (2000) Persistent instability of firing of hindbrain neurons during extended latency of evoked locomotion in salamander. Eur. J. Neurosci. 12: 163-163 Suppl. S 2000
[abstract]     [poster text]     [poster figures]

Kagan I., Gur M., Snodderly D.M. (2000) The influence of fixational eye movements on cell classification in V1 of alert monkeys. Boston Area Neuroscience Group (BANG'00)
[abstract]

Gur M., Kagan I., Snodderly D.M. (1999) "Duplex", not simple, cells are the major cell type in striate cortex of alert monkeys. Soc. Neurosci. Abstr. 29: 1548
[abstract]     [presentation]

Kagan I., Gur M., Snodderly D.M. (1999) The influence of fixational eye movements on grating-elicited responses of V1 neurons. Neuroscience Letters 54, Suppl.: S22-S22
[abstract]     [poster text]     [poster figures]

Kagan D., Kagan I., Shik M. (1999) Behavior of hindbrain neurons during latency of evoked locomotion in salamander. Fifth IBRO World Congress of Neuroscience Proceedings, 88
[abstract]     [poster text]     [poster figures]

Kagan I., Gur M., Snodderly D.M. (1998) "Duplex", not simple, cells are the major cell type in striate cortex of alert monkeys. Neuroscience Letters 51, Suppl.: S20-S21
[abstract]     [poster text]     [poster figures]

Kagan I., Shik M. (1996) Responses of hindbrain neurons to the threshold repetitive stimulation of the mesencephalic "locomotor region" in urodele. Israel J. of Med. Sci. 32, Suppl.: S34

Bar-Gad I., Kagan I., Shik M. (1995) Responses of single neurons in the hindbrain of the newt to threshold repetitive stimulation of the mesencephalic "locomotor region". Israel J. of Med. Sci. 31: 762