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Researchers at UCD

researcher

Simon Kelly

Lecturer

School Of Electric, Electron & Comms Eng
Engineering Building
Belfield
Dublin 4

Tel: +353 1 7161803
Email: simon.kelly@ucd.ie

Biography

Simon Kelly is currently a lecturer in the School of Electrical, Electronic and Communications Engineering at University College Dublin. His research is focused on measuring and characterizing perceptual and cognitive brain signals that relate to behaviour. He mainly employs electroencephalographic (EEG) recordings and psychophysics in humans to study the neural computations underlying perception, attention and decision making. 

Dr. Kelly received his B.E. and Ph. D. degrees in Electronic and Electrical Engineering from University College Dublin, in 2001 and 2005, respectively. He then worked as a postdoctoral researcher in the Nathan S. Kline Institute for Psychiatric Research, New York, and in the Columbia University Department of Neuroscience, and held the position of assistant professor in the Department of Biomedical Engineering in the City College of the City University of New York.

Publications

     

Peer Reviewed Journals

Kelly, S and Burke, D and Chazal, D and Reilly, R (2002) 'Parametric models and classification for direct brain interfaces'. Proceedings of the Irish Signal and Systems Conference, . [Details]
Lalor, E and Kelly, SP and Finucane, C and Burke, R and Reilly, RB and McDarby, G (2004) 'Brain computer interface based on the steady-state VEP for immersive gaming control'. Biomed. Tech, 49 (1):63-64. [Details]
Dockree, Paul M and Kelly, Simon P and Roche, Richard AP and Hogan, Michael J and Reilly, Richard B and Robertson, Ian H (2004) 'Behavioural and physiological impairments of sustained attention after traumatic brain injury'. Cognitive Brain Research, 20 (3):403-414. [Details]
Lalor, Edmund C and Kelly, Simon P and Finucane, Ciar\'an and Burke, Robert and Smith, Ray and Reilly, Richard B and Mcdarby, Gary (2005) 'Steady-state VEP-based brain-computer interface control in an immersive 3D gaming environment'. EURASIP journal on applied signal processing, 2005 :3156-3164. [Details]
Kelly, Simon P and Lalor, Edmund C and Reilly, Richard B and Foxe, John J (2005) 'Visual spatial attention tracking using high-density SSVEP data for independent brain-computer communication'. Neural Systems and Rehabilitation Engineering, IEEE Transactions on, 13 (2):172-178. [Details]
Kelly, Simon P and Lalor, Edmund C and Finucane, Ciar\'an and McDarby, Gary and Reilly, Richard B (2005) 'Visual spatial attention control in an independent brain-computer interface'. Biomedical Engineering, IEEE Transactions on, 52 (9):1588-1596. [Details]
Burke, Dave P and Kelly, Simon P and de Chazal, Philip and Reilly, Richard B and Finucane, Ciar\'an (2005) 'A parametric feature extraction and classification strategy for brain-computer interfacing'. Neural Systems and Rehabilitation Engineering, IEEE Transactions on, 13 (1):12-17. [Details]
Dockree, Paul M and Kelly, Simon P and Robertson, Ian H and Reilly, Richard B and Foxe, John J (2005) 'Neurophysiological markers of alert responding during goal-directed behavior: a high-density electrical mapping study'. Neuroimage, 27 (3):587-601. [Details]
Yeap, Sherlyn and Kelly, Simon P and Sehatpour, Pejman and Magno, Elena and Javitt, Daniel C and Garavan, Hugh and Thakore, Jogin H and Foxe, John J (2006) 'Early visual sensory deficits as endophenotypes for schizophrenia: high-density electrical mapping in clinically unaffected first-degree relatives'. Archives of general psychiatry, 63 (11):1180-1188. [Details]
Kelly, Simon P and Lalor, Edmund C and Reilly, Richard B and Foxe, John J (2006) 'Increases in alpha oscillatory power reflect an active retinotopic mechanism for distracter suppression during sustained visuospatial attention'. Journal of neurophysiology, 95 (6):3844-3851. [Details]
Johnson, Katherine A and Kelly, Simon P and Bellgrove, Mark A and Barry, Edwina and Cox, Marie and Gill, Michael and Robertson, Ian H (2007) 'Response variability in attention deficit hyperactivity disorder: evidence for neuropsychological heterogeneity'. Neuropsychologia, 45 (4):630-638. [Details]
O'Connell, Redmond G and Dockree, Paul M and Bellgrove, Mark A and Kelly, Simon P and Hester, Robert and Garavan, Hugh and Robertson, Ian H and Foxe, John J (2007) 'The role of cingulate cortex in the detection of errors with and without awareness: a high-density electrical mapping study'. European Journal of Neuroscience, 25 (8):2571-2579. [Details]
Johnson, Katherine A and Robertson, Ian H and Kelly, Simon P and Silk, Timothy J and Barry, Edwina and D\'aibhis, Aoife and Watchorn, Amy and Keavey, Michelle and Fitzgerald, Michael and Gallagher, Louise and others (2007) 'Dissociation in performance of children with ADHD and high-functioning autism on a task of sustained attention'. Neuropsychologia, 45 (10):2234-2245. [Details]
Senkowski, Daniel and Saint-Amour, Dave and Kelly, Simon P and Foxe, John J (2007) 'Multisensory processing of naturalistic objects in motion: a high-density electrical mapping and source estimation study'. Neuroimage, 36 (3):877-888. [Details]
Lalor, Edmund C and Kelly, Simon P and Pearlmutter, Barak A and Reilly, Richard B and Foxe, John J (2007) 'Isolating endogenous visuo-spatial attentional effects using the novel visual-evoked spread spectrum analysis (VESPA) technique'. European Journal of Neuroscience, 26 (12):3536-3542. [Details]
Dockree, Paul M and Kelly, Simon P and Foxe, John J and Reilly, Richard B and Robertson, Ian H (2007) 'Optimal sustained attention is linked to the spectral content of background EEG activity: greater ongoing tonic alpha (~ 10 Hz) power supports successful phasic goal activation'. European Journal of Neuroscience, 25 (3):900-907. [Details]
Johnson, Katherine A and Kelly, Simon P and Robertson, Ian H and Barry, Edwina and Mulligan, Aisling and Daly, Michael and Lambert, David and McDonnell, Caroline and Connor, Thomas J and Hawi, Ziarih and others (2008) 'Absence of the 7-repeat variant of the DRD4 VNTR is associated with drifting sustained attention in children with ADHD but not in controls'. American Journal of Medical Genetics Part B: Neuropsychiatric Genetics, 147 (6):927-937. [Details]
Yeap, Sherlyn and Kelly, Simon P and Sehatpour, Pejman and Magno, Elena and Garavan, Hugh and Thakore, Jogin H and Foxe, John J (2008) 'Visual sensory processing deficits in Schizophrenia and their relationship to disease state'. European archives of psychiatry and clinical neuroscience, 258 (5):305-316. [Details]
Barnett, Kylie J and Foxe, John J and Molholm, Sophie and Kelly, Simon P and Shalgi, Shani and Mitchell, Kevin J and Newell, Fiona N (2008) 'Differences in early sensory-perceptual processing in synesthesia: a visual evoked potential study'. Neuroimage, 43 (3):605-613. [Details]
Johnson, Katherine A and Barry, Edwina and Bellgrove, Mark A and Cox, Marie and Kelly, Simon P and D\'aibhis, Aoife and Daly, Michael and Keavey, Michelle and Watchorn, Amy and Fitzgerald, Michael and others (2008) 'Dissociation in response to methylphenidate on response variability in a group of medication naive children with ADHD'. Neuropsychologia, 46 (5):1532-1541. [Details]
Yeap, Sherlyn and Kelly, Simon P and Thakore, Jogin H and Foxe, John J (2008) 'Visual sensory processing deficits in first-episode patients with schizophrenia'. Schizophrenia research, 102 (1):340-343. [Details]
De Sanctis, Pierfilippo and Ritter, Walter and Molholm, Sophie and Kelly, Simon P and Foxe, John J (2008) 'Auditory Scene Analysis: the interaction of stimulation rate and frequency separation on pre-attentive grouping'. European Journal of Neuroscience, 27 (5):1271-1276. [Details]
Kelly, Simon P and Gomez-Ramirez, Manuel and Foxe, John J (2008) 'Spatial attention modulates initial afferent activity in human primary visual cortex'. Cerebral cortex, 18 (11):2629-2636. [Details]
Kelly, Simon P and Gomez-Ramirez, Manuel and Foxe, John J (2009) 'The strength of anticipatory spatial biasing predicts target discrimination at attended locations: a high-density EEG study'. European Journal of Neuroscience, 30 (11):2224-2234. [Details]
Gomez-Ramirez, Manuel and Kelly, Simon P and Montesi, Jennifer L and Foxe, John J (2009) 'The effects of L-theanine on alpha-band oscillatory brain activity during a visuo-spatial attention task'. Brain topography, 22 (1):44-51. [Details]
Yeap, Sherlyn and Kelly, Simon P and Reilly, Richard B and Thakore, Jogin H and Foxe, John J (2009) 'Visual sensory processing deficits in patients with bipolar disorder revealed through high-density electrical mapping'. Journal of psychiatry \& neuroscience: JPN, 34 (6). [Details]
O'Connell, Redmond G and Dockree, Paul M and Robertson, Ian H and Bellgrove, Mark A and Foxe, John J and Kelly, Simon P (2009) 'Uncovering the neural signature of lapsing attention: electrophysiological signals predict errors up to 20 s before they occur'. The Journal of Neuroscience, 29 (26):8604-8611. [Details]
Kelly, Simon P and Foxe, John J and Newman, Geoffrey and Edelman, Jay A (2010) 'Prepare for conflict: EEG correlates of the anticipation of target competition during overt and covert shifts of visual attention'. European Journal of Neuroscience, 31 (9):1690-1700. [Details]
Frey, Hans-Peter and Kelly, Simon P and Lalor, Edmund C and Foxe, John J (2010) 'Early spatial attentional modulation of inputs to the fovea'. The Journal of Neuroscience, 30 (13):4547-4551. [Details]
Krakowski, Aaron I and Ross, Lars A and Snyder, Adam C and Sehatpour, Pejman and Kelly, Simon P and Foxe, John J (2011) 'The neurophysiology of human biological motion processing: a high-density electrical mapping study'. NeuroImage, 56 (1):373-383. [Details]
Foxe, John J and Yeap, Sherlyn and Snyder, Adam C and Kelly, Simon P and Thakore, Jogin H and Molholm, Sophie (2011) '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'. European archives of psychiatry and clinical neuroscience, 261 (5):331-339. [Details]
Gomez-Ramirez, Manuel and Kelly, Simon P and Molholm, Sophie and Sehatpour, Pejman and Schwartz, Theodore H and Foxe, John J (2011) 'Oscillatory sensory selection mechanisms during intersensory attention to rhythmic auditory and visual inputs: a human electrocorticographic investigation'. The Journal of Neuroscience, 31 (50):18556-18567. [Details]
Murphy, Jeremy W and Kelly, Simon P and Foxe, John J and Lalor, Edmund C (2012) 'Isolating early cortical generators of visual-evoked activity: a systems identification approach'. Experimental brain research, 220 (2):191-199. [Details]
Lalor, Edmund C and Kelly, Simon P and Foxe, John J (2012) 'Generation of the VESPA response to rapid contrast fluctuations is dominated by striate cortex: evidence from retinotopic mapping'. Neuroscience, 218 :226-234. [Details]
O'Connell, Redmond G and Dockree, Paul M and Kelly, Simon P (2012) 'A supramodal accumulation-to-bound signal that determines perceptual decisions in humans'. Nature neuroscience, 15 (12):1729-1735. [Details]
Foxe, John J and Morie, Kristen P and Laud, Peter J and Rowson, Matthew J and De Bruin, Eveline A and Kelly, Simon P (2012) 'Assessing the effects of caffeine and theanine on the maintenance of vigilance during a sustained attention task'. Neuropharmacology, 62 (7):2320-2327. [Details]
Vanegas, M Isabel and Blangero, Annabelle and Kelly, Simon P (2013) 'Exploiting individual primary visual cortex geometry to boost steady state visual evoked potentials'. Journal of neural engineering, 10 (3). [Details]
Kelly, Simon P and Vanegas, M Isabel and Schroeder, Charles E and Lalor, Edmund C (2013) 'The cruciform model of striate generation of the early VEP, re-illustrated, not revoked: a reply to Ales et al.(2013)'. NeuroImage, 82 :154-159. [Details]
Moisello, Clara and Meziane, Hadj Boumediene and Kelly, Simon and Perfetti, Bernardo and Kvint, Svetlana and Voutsinas, Nicholas and Blanco, Daniella and Quartarone, Angelo and Tononi, Giulio and Ghilardi, Maria Felice (2013) 'Neural activations during visual sequence learning leave a trace in post-training spontaneous EEG'. PloS one, 8 (6). [Details]
Kelly, Simon P and O'Connell, Redmond G (2013) 'Internal and external influences on the rate of sensory evidence accumulation in the human brain'. The Journal of Neuroscience, 33 (50):19434-19441. [Details]
Kelly, Simon P and Schroeder, Charles E and Lalor, Edmund C (2013) 'What does polarity inversion of extrastriate activity tell us about striate contributions to the early VEP? A comment on Ales et al.(2010)'. NeuroImage, 76 :442-445. [Details]
Vanegas-Arroyave, Marta Isabel and Blangero, Annabelle and Kelly, Simon (2014) 'Direct neurophysiological measurement of surround suppression in humans'. Journal of Vision, 14 (10):50-50. [Details]
Guadron, Leslie and Blangero, Annabelle and Kelly, Simon P (2014) 'Pre-Saccadic Modulation of the Visual Evoked Potential'. Journal of Vision, 14 (10):619-619. [Details]
Kelly, Simon P and Oâ¿¿Connell, Redmond G (2014) 'The neural processes underlying perceptual decision making in humans: Recent progress and future directions'. Journal of Physiology-Paris, . [Details]
Johnson, Katherine A and Healy, Elaine and Dooley, Barbara and Kelly, Simon P and McNicholas, Fiona (2014) 'Children born with very low birth weight show difficulties with sustained attention but not response inhibition'. Child Neuropsychology, (ahead-of-print):1-19. [Details]
Newman, Daniel P and Loughnane, Gerard M and Abe, Rafael and Zoratti, Marco TR and Martins, Ana CP and van den Bogert, Petra C and Kelly, Simon P and O⿿Connell, Redmond G and Bellgrove, Mark A (2014) 'Differential shift in spatial bias over time depends on observers׳ initial bias: Observer subtypes, or regression to the mean?'. Neuropsychologia, 64 :33-40. [Details]
 

Conference Publications

Kelly, S and Burke, D and De Chazal, P and Reilly, R (2002) Parametric models and spectral analysis for classification in brain-computer interfaces Digital Signal Processing, 2002. DSP 2002. 2002 14th International Conference on , pp.307-310 [Details]
Burke, D and Kelly, S and De Chazal, P and Reilly, R (2002) A simultaneous filtering and feature extraction strategy for direct brain interfacing Engineering in Medicine and Biology, 2002. 24th Annual Conference and the Annual Fall Meeting of the Biomedical Engineering Society EMBS/BMES Conference, 2002. Proceedings of the Second Joint , pp.279-280 [Details]
Kelly, SP and Dockree, P and Reilly, RB and Robertson, IH (2003) EEG Alpha power and coherence time courses in a sustained attention task Neural Engineering, 2003. Conference Proceedings. First International IEEE EMBS Conference on , pp.83-86 [Details]
Dockree, P.M., Kelly, S. P., Roche, R. A. P., Hogan, M. J., Reilly, R. B., & Robertson, I. H. ; (2003) Impairments of vigilant attention and alpha desychronization after traumatic brain injury National Neuroscience Network Meeting, Trinity College Dublin, 25th - 26th September, 2003 Dublin, , 25-SEP-03 - 26-SEP-03 [Details]
Kelly S.P., Lalor E, Finucane C., Reilly R.B.,; (2004) 'A Comparison of Covert and Overt Attention as a Control Option in a Steady-State Visual Evoked Potential-based Brain Computer Interface' Proc. of the 26th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, San Francisco, September 2004 San Francisco, [Details]
Kelly, SP and Lalor, E and Finucane, C and Reilly, RB (2004) A comparison of covert and overt attention as a control option in a steady-state visual evoked potential-based brain computer interface Engineering in Medicine and Biology Society, 2004. IEMBS'04. 26th Annual International Conference of the IEEE , pp.4725-4728 [Details]
Kelly, SP and Lalor, E and Reilly, RB and Foxe, JJ (2005) Independent brain computer interface control using visual spatial attention-dependent modulations of parieto-occipital alpha Neural Engineering, 2005. Conference Proceedings. 2nd International IEEE EMBS Conference on , pp.667-670 [Details]
Kelly S.P., Lalor E., Reilly R.B., Foxe J.J. ; (2005) 'Independent Brain Computer Interface Control using Visual Spatial Attention-Dependent Modulations of Parieto-occipital Alpha' IEEE International Conference on Neural Engineering, March 2005 *, [Details]
Kelly S.P., Lalor E., Reilly R.B., Foxe J.J; (2005) Independent Brain Computer Interface Control using Visual Spatial Attention-Dependent Modulations of Parieto-occipital Alpha IEEE International Conference on Neural Engineering [Details]
Yeap, S and Kelly, SP and Sehatpour, P and Magno, E and Thakore, JH and Foxe, JJ (2006) P1 generation deficits revealed in first-degree relatives of schizophrenia: A high density electrical mapping study SCHIZOPHRENIA RESEARCH , pp.172-172 [Details]
Kelly, S and O'Connell, R (2012) Oscillatory markers of perceptual decision formation under vigilant monitoring conditions PERCEPTION , pp.9-9 [Details]
                                                                                         

Research

Research Interests

In our research we use psychophysics, electrophysiology, functional imaging and computational modeling to understand the mechanisms by which the brain makes simple decisions. Major questions we are pursuing include how value, prior information, urgency, perceptual ambiguity, temporal uncertainty and competition among information sources are accounted for in the decision making process through adaptive changes in sensory, decision and motor signals, and selective attention. 

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.