Simon Kelly

Simon Kelly

Academic Background

Post-Doc, Columbia University, Mahoney-Keck Center for Brain & Behavior Research (2008-2010)
Post-Doc, Nathan Kline Institute for Psychiatric Research, Cognitive Neurophysiology Lab (2005-2008)
Ph.D., University College Dublin, Biomedical Engineering, (2001-2005)
B.E., University College Dublin, Electronic Engineering, (1997-2001)

Research Interests

Research in the Kelly Lab is focused on measuring and characterizing perceptual and cognitive brain signals that relate to behavior. We are particularly interested in linking non-invasively recorded electrical brain signals (EEG) in humans to specific neural computations involved in perception, attention and decision making. Our focus is on paradigm development and basic research findings, but we continually deploy our paradigms and dependent measures to studies of neurological and psychiatric disorders through several active clinical collaborations.

More information here

Lab members

Postdoctoral scientists: Annabelle Blangero, Nicolas Langer
Graduate Students: Isabel Vanegas, Natalie Steinemann, Leslie Guadron
Undergraduate students: Genevieve Price, Sarita Tamang, Azeezat Azeez, Dario Pinos, Nigel Gebodh, Kelsang Bista, Renato Moratore.


Biostatistics and Research Methods (BME 22000, undergraduate)
Bioelectrical Circuits (BME 20500, undergraduate)
Dynamical Systems and Modeling (BME 30500, undergraduate)
Neural Systems and Behavior (BME 3200, graduate)



Kelly SP, O'Connell RG. Internal and external influences on sensory evidence accumulation in the human brain. J Neurosci. In Press.

O'Connell RG, Dockree PD, Kelly SP. A supramodal accumulation-to-bound signal that determines perceptual decisions in humans. Nat Neurosci. 2012. 15, 1729-35. PDF

O'Connell RG, Dockree PM, Robertson IH, Bellgrove MA, Foxe JJ, Kelly SP. Uncovering the Neural Signature of Lapsing Attention: electrophysiological signals predict errors up to 20 seconds before they occur. J Neurosci. 2009. 29(26):8604-11. PDF

Vanegas MI, Blangero A, Kelly SP, Exploiting individual primary visual cortex geometry to boost steady state visual evoked potentials. Journal of Neural Engineering, 2013, 10(3):036003. PDF

Kelly SP, Vanegas MI, Schroeder CE, Lalor EC, The Cruciform model of striate generation of the early VEP, re-illustrated, not revoked: a reply to Ales et al (2013). NeuroImage. 2013, 82, 154-159.

Kelly SP, Schroeder CE, Lalor EC, What does polarity inversion of extrastriate activity tell us about striate contributions to the early VEP? A comment on Ales et al (2010), NeuroImage, In Press. PDF

Kelly SP, Gomez-Ramirez M, Foxe JJ. Spatial Attention Modulates Initial Afferent Activity in Human Primary Visual Cortex. Cereb Cortex. 2008, 18(11):2629-36. PDF

Murphy JW, Kelly SP, Foxe JJ, Lalor EC. Isolating early cortical generators of visual-evoked activity: a systems identification approach. Exp Brain Res. 2012, In Press. PDF

Lalor EC, Kelly SP, Foxe JJ. Generation of the VESPA response to rapid contrast fluctuations is dominated by striate cortex: evidence from retinotopic mapping. Neuroscience. 2012, In Press. PDF

Frey HP, Kelly SP, Lalor EC, Foxe JJ. Early spatial attentional modulation of inputs to the fovea. J Neurosci. 2010. 30(13):4547-51. PDF

Lalor EC, Kelly SP, Pearlmutter BA, Reilly RB, Foxe JJ. Isolating endogenous visuo-spatial attentional effects using the novel visual-evoked spread spectrum analysis (VESPA) technique. Eur J Neurosci. 2007 26(12):3536-42. PDF

Gomez-Ramirez M, Kelly SP, Sehatpour P, Molholm S, Schwartz T, & Foxe JJ. Oscillatory Sensory Selection Mechanisms during Intersensory Attention to Rhythmic Auditory and Visual Inputs: A Human Electro-Corticographic Investigation, J Neurosci, 2011. 14;31(50):18556-67. PDF

Kelly SP, Foxe JJ, Newman G, Edelman JA. Prepare for Conflict: EEG correlates of the anticipation of target competition during overt and covert shifts of visual attention. Eur J Neurosci. 2010. 31(9):1690-700. PDF

Kelly SP, Gomez-Ramirez M, Foxe JJ. The strength of anticipatory spatial biasing predicts target discrimination at attended locations: A high-density EEG study. Eur J Neurosci. 2009. 30(11):2224-34. PDF

Kelly SP, Lalor EC, Reilly RB, Foxe JJ. Increases in alpha oscillatory power reflect an active retinotopic mechanism for distracter suppression during sustained visuospatial attention. J Neurophysiol. 2006 Jun;95(6):3844-51. PDF

Dockree PM, Kelly SP, Foxe JJ, Reilly RB, Robertson IH. Optimal sustained attention is linked to the spectral content of background EEG activity: greater ongoing tonic alpha (approximately 10 Hz) power supports successful phasic goal activation. Eur J Neurosci. 2007 25(3):900-7. PDF

Dockree PM, Kelly SP, Robertson IH, Reilly RB, Foxe JJ. Neurophysiological markers of alert responding during goal-directed behavior: a high-density electrical mapping study. NeuroImage. 2005 27(3):587-601. PDF

O'Connell RG, Dockree PM, Bellgrove MA, Kelly SP, Hester R, Garavan H, Robertson IH, Foxe JJ. The role of cingulate cortex in the detection of errors with and without awareness: a high-density electrical mapping study. Eur J Neurosci. 2007 25(8):2571-9. PDF

Moisello C, Meziane H, Kelly SP, Perfetti B, Kvint S, Voutsinas N, Blanco D, Quartarone A, Tononi G, Ghilardi MF, Neural Activations during Visual Sequence Learning leave a trace in post-training spontaneous EEG. Plos ONE 2013, 8 (6), e65882.

Krakowski AI, Ross LA, Snyder AC, Sehatpour P, Kelly SP, Foxe JJ. The neurophysiology of human biological motion processing: A high-density electrical mapping study. NeuroImage, In Press.

De Sanctis P, Ritter W, Molholm S, Kelly SP, Foxe JJ. Auditory scene analysis: the interaction of stimulation rate and frequency separation on pre-attentive grouping. Eur J Neurosci. 2008 27(5):1271-6. PDF

Senkowski D, Saint-Amour D, Kelly SP, Foxe JJ. Multisensory processing of naturalistic objects in motion: a high-density electrical mapping and source estimation study. NeuroImage. 2007 Jul 1;36(3):877-88. PDF

Foxe JJ, Morie KP, Laud PJ, Rowson MJ, de Bruin EA, Kelly SP, Assessing the effects of caffeine and theanine on the maintenance of vigilance during a sustained attention task. Neuropharmacology, 2012. 62(7):2319-2326.

Kelly SP, Gomez-Ramirez M, Montesi JL, Foxe JJ. L-theanine and caffeine in combination affect human cognition as evidenced by oscillatory alpha-band activity and attention task performance. Journal of Nutrition. 2008, 138(8):1572S-1577S. PDF

Gomez-Ramirez M, Kelly SP, Montesi JL, & Foxe JJ. The effects of L-theanine on alpha-band oscillatory brain activity during a visuo-spatial attention task. Brain Topography. 2009. 22(1):44-51. PDF


Kelly SP, Lalor EC, Finucane C, McDarby G, Reilly RB. Visual spatial attention control in an independent brain-computer interface. IEEE Trans Biomed Eng. 2005 52(9):1588-96. PDF

Kelly SP, Lalor EC, Reilly RB, Foxe JJ. Visual spatial attention tracking using high-density SSVEP data for independent brain-computer communication. IEEE Trans Neural Syst Rehabil Eng. 2005 13(2):172-8. PDF

Lalor EC, Kelly SP, Finucane C, Burke R, Smith R, Reilly RB, McDarby G. Steady-state VEP-based Brain Computer Interface Control in an Immersive 3-D Gaming Environment. EURASIP Journal on Applied Signal Processing. 2005:19, 3156–3164. PDF

Burke DP, Kelly SP, de Chazal P, Reilly RB, Finucane C. A parametric feature extraction and classification strategy for brain-computer interfacing. IEEE Trans Neural Syst Rehabil Eng. 2005 13(1):12-7. PDF

Lalor EC, Kelly SP, Finucane C, Burke R, Reilly RB, McDarby G. Brain Computer Interface Based on the Steady-State VEP for Immersive Gaming Control. Biomed Tech. 2004 49(1): 63-64. PDF


Adamo, N., Di Martino, A., Esu, L., Petkova, E., Johnson, K.A., Kelly, SP, Castellanos, F.X., Zuddas, A. Increased RT variability across different cognitive tasks in children with ADHD. Journal of Attention Disorders, 2012, In Press.

Foxe JJ, Yeap S, Snyder AC, Kelly SP, Thakore JH, Molholm S. The N1 auditory evoked potential component as an endophenotype for schizophrenia: high-density electrical mapping in clinically unaffected first-degree relatives, first-episode, and chronic schizophrenia patients. Eur Arch Psychiatry Clin Neurosci. 2011. 261(5):331-9.

Yeap S, Kelly SP, Reilly RB, Thakore JH, Foxe JJ. Visual sensory processing deficits in bipolar disorder revealed through high-density electrical mapping. J Psychiat Neurosci. 2009. 34(6):459-64. PDF

Yeap S, Kelly SP, Thakore JH, Foxe JJ. Visual sensory processing deficits in first-episode patients with Schizophrenia. Schizophrenia Research. 2008, 102(1-3):340-3. PDF

Yeap S, Kelly SP, Sehatpour P, Magno E, Garavan H, Thakore JH, Foxe JJ. Visual sensory processing deficits in Schizophrenia and their relationship to disease state. Eur Arch Psychiatry Clin Neurosci. 2008, 258(5):305-16. PDF

Yeap S, Kelly SP, Sehatpour P, Magno E, Javitt DC, Garavan H, Thakore JH, Foxe JJ. Early visual sensory deficits as endophenotypes for schizophrenia: high-density electrical mapping in clinically unaffected first-degree relatives. Arch Gen Psychiatry. 2006 63(11):1180-8. PDF

Johnson KA, Barry E, Bellgrove MA, Cox M, Kelly SP, Dáibhis A, Daly M, Keavey M, Watchorn A, Fitzgerald M, McNicholas F, Kirley A, Robertson IH, Gill M. Dissociation in response to methylphenidate on response variability in a group of medication naïve children with ADHD. Neuropsychologia. 2008, 46(5):1532-41. PDF

Johnson KA, Kelly SP, Robertson IH, Barry E, Mulligan A, Daly M, Lambert D, McDonnell C, Connor TJ, Hawi Z, Gill M, Bellgrove MA. Absence of the 7-repeat variant of the DRD4 VNTR is associated with drifting sustained attention in children with ADHD but not in controls. Am J Med Genet B Neuropsychiatr Genet. 2008, 147B(6):927-37. PDF

Johnson KA, Kelly SP, Bellgrove MA, Barry E, Cox M, Gill M, Robertson IH. Response variability in attention deficit hyperactivity disorder: evidence for neuropsychological heterogeneity. Neuropsychologia. 2007 45(4):630-8. PDF

Johnson KA, Robertson IH, Kelly SP, Silk TJ, Barry E, Dáibhis A, Watchorn A, Keavey M, Fitzgerald M, Gallagher L, Gill M, Bellgrove MA. Dissociation in performance of children with ADHD and high-functioning autism on a task of sustained attention. Neuropsychologia. 2007 Jun 11;45(10):2234-45. PDF

Barnett KJ, Foxe JJ, Molholm S, Kelly SP, Shalgi S, Mitchell KJ, Newell FN. Differences in early sensory-perceptual processing in synesthesia: a visual evoked potentials study. NeuroImage. 2008 43(3):605-13. PDF

Dockree PM, Kelly SP, Roche RA, Hogan MJ, Reilly RB, Robertson IH. Behavioural and physiological impairments of sustained attention after traumatic brain injury. Cogn Brain Res. 2004 Aug;20(3):403-14. PDF

Simon Kelly
Assistant Professor of Biomedical Engineering City College of New York, Steinman Hall
(212) 650-8626
(212) 650-6727
Kelly Lab [..]