Red leaves that have fallen in a stream

Journal Articles

Williams, C.C., Hassall, C.D., & Krigolson, O.E. (2023). Stabilizing expectations when shifting from analytical to intuitive reasoning: The role of prediction errors in reasoning. Cortex. https://doi.org/10.1016/j.cortex.2023.02.005

Hassall, C. D., Harley, J., Kolling, N., & Hunt, L. T. (2022). Temporal scaling of human scalp-recorded potentials. PNAS, 119 (43) e2214638119. https://doi.org/10.1073/pnas.2214638119

Hassall, C. D., & Hunt, L. T. (2022). Novelty, uncertainty, and the looming horizon. Neuron, 110(16), 2521–2523. https://doi.org/10.1016/j.neuron.2022.07.009

Hassall, C. D., Hunt, L.T., & Holroyd, C. B. (2022). Task-level value affects trial-level reward processing and control. NeuroImage, 260, 119456. https://doi.org/10.1016/j.neuroimage.2022.119456

Manning, C., Hassall, C. D., Hunt, L. T., Norcia, A. M., Wagenmakers, E.-J., Evans, N. J., & Scerif, G. (2022). Behavioural and neural indices of perceptual decision-making in autistic children during visual motion tasks. Scientific Reports, 12(1), 6072. https://doi.org/10.1038/s41598-022-09885-4

Manning, C., Hassall, C. D., Hunt, L. T., Norcia, A. M., Wagenmakers, E.-J., Snowling, M. J., Scerif, G., & Evans, N. J. (2022). Visual motion and decision-making in dyslexia: Reduced accumulation of sensory evidence and related neural dynamics. Journal of Neuroscience, 42(1), 121–134. https://doi.org/10.1523/JNEUROSCI.1232-21.2021

Redden, R. S., Gagliardi, G. A., Williams, C. C., Hassall, C. D., & Krigolson, O. E. (2021). Champ versus chump: Viewing an opponent’s face engages attention but not reward systems. Games, 12(3), 62. https://doi.org/10.3390/g12030062

Abubshait, A., Beatty, P. J., McDonald, C. G., Hassall, C. D., Krigolson, O. E., & Wiese, E. (2021). A win-win situation: Does familiarity with a social robot modulate feedback monitoring and learning? Cognitive, Affective, & Behavioral Neuroscience. https://doi.org/10.3758/s13415-021-00895-9

Williams, C. C., Ferguson, T. D., Hassall, C. D., Abimbola, W., & Krigolson, O. E. (2021). The ERP, frequency, and time–frequency correlates of feedback processing: Insights from a large sample study. Psychophysiology, 58(2), e13722. https://doi.org/10.1111/psyp.13722

Williams, C. C., Ferguson, T. D., Hassall, C. D., Wright, B., & Krigolson, O. E. (2021). Dissociated neural signals of conflict and surprise in effortful decision Making: Theta activity reflects surprise while alpha and beta activity reflect conflict. Neuropsychologia, 155, 107793. https://doi.org/10.1016/j.neuropsychologia.2021.107793

Hassall, C. D., & Krigolson, O. E. (2020). Feedback processing is enhanced following exploration in continuous environments. Neuropsychologia, 146, 107538. https://doi.org/10.1016/j.neuropsychologia.2020.107538

Colino, F. L., Heath, M., Hassall, C. D., & Krigolson, O. E. (2020). Electroencephalographic evidence for a reinforcement learning advantage during motor skill acquisition. Biological Psychology, 151, 107849. https://doi.org/10.1016/j.biopsycho.2020.107849

Colino, F. L., Williams, C. C., Hassall, C. D., Binsted, G., & Krigolson, O. E. (2020). The impact of wellness on neural learning systems. Neuroscience Letters, 714, 134537. https://doi.org/10.1016/j.neulet.2019.134537

Williams, C. C., Hassall, C. D., Lindenbach, T., & Krigolson, O. E. (2019). Reward Prediction Errors Reflect an Underlying Learning Process That Parallels Behavioural Adaptations: A Trial-to-Trial Analysis. Computational Brain & Behavior. https://doi.org/10.1007/s42113-019-00069-4

Hassall, C. D., Hajcak, G., & Krigolson, O. E. (2019). The importance of agency in human reward processing. Cognitive, Affective, & Behavioral Neuroscience. https://doi.org/10/gf3tgc

Hassall, C. D., McDonald, C. G., & Krigolson, O. E. (2019). Ready, set, explore! Event-related potentials reveal the time-course of exploratory decisions. Brain Research, 1719, 183–193. https://doi.org/10/gf3d7b

Williams, C. C., Kappen, M., Hassall, C. D., Wright, B., & Krigolson, O. E. (2019). Thinking theta and alpha: Mechanisms of intuitive and analytical reasoning. NeuroImage, 189, 574–580. https://doi.org/10/gfvqxw

Hassall, C. D., Connor, P. C., Trappenberg, T. P., McDonald, J. J., & Krigolson, O. E. (2018). Learning what matters: A neural explanation for the sparsity bias. International Journal of Psychophysiology, 127, 62–72. https://doi.org/10/gds4fc

Howse, A. D., Hassall, C. D., Williams, C. C., Hajcak, G., & Krigolson, O. E. (2018). Alcohol hangover impacts learning and reward processing within the medial-frontal cortex. Psychophysiology, e13081. https://doi.org/10/gc9m49

Hassall, C. D., & Williams, C. C. (2017). The Role of the Amygdala in Value-Based Learning. The Journal of Neuroscience, 37(28), 6601–6602. https://doi.org/10/gd32zx

Krigolson, O. E., Williams, C. C., Norton, A., Hassall, C. D., & Colino, F. L. (2017). Choosing MUSE: Validation of a Low-Cost, Portable EEG System for ERP Research. Frontiers in Neuroscience, 11. https://doi.org/10/gd32zw

Williams, C. C., Hassall, C. D., Trska, R., Holroyd, C. B., & Krigolson, O. E. (2017). When theory and biology differ: The relationship between reward prediction errors and expectancy. Biological Psychology, 129(Supplement C), 265–272. https://doi.org/10/gdk3ph

Hassall, C. D., Quinlan, C. K., Turk, D. J., Taylor, T. L., & Krigolson, O. E. (2016). A preliminary investigation into the neural basis of the production effect. Canadian Journal of Experimental Psychology/Revue Canadienne de Psychologie Expérimentale, 70(2), 139–146. https://doi.org/10/f8sqbc

Hassall, C. D., Silver, A., Turk, D. J., & Krigolson, O. E. (2016). We are more selfish than we think: The endowment effect and reward processing within the human medial-frontal cortex. The Quarterly Journal of Experimental Psychology, 69(9), 1676–1686. https://doi.org/10/gd32zz

Heath, M., Hassall, C. D., MacLean, S., & Krigolson, O. E. (2015). Event-related brain potentials during the visuomotor mental rotation task: The contingent negative variation scales to angle of rotation. Neuroscience, 311, 153–165. https://doi.org/10/f73f7r

Krigolson, O. E., Hassall, C. D., Satel, J., & Klein, R. M. (2015). The impact of cognitive load on reward evaluation. Brain Research, 1627, 225–232. https://doi.org/10/f73g6q

MacLean, S. J., Hassall, C. D., Ishigami, Y., Krigolson, O. E., & Eskes, G. A. (2015). Using brain potentials to understand prism adaptation: the error-related negativity and the P300. Frontiers in Human Neuroscience, 9. https://doi.org/10/gd32z2

Weiler, J., Hassall, C. D., Krigolson, O. E., & Heath, M. (2015). The unidirectional prosaccade switch-cost: Electroencephalographic evidence of task-set inertia in oculomotor control. Behavioural Brain Research, 278, 323–329. https://doi.org/10/f6v59v

Hassall, C. D., MacLean, S., & Krigolson, O. E. (2014). Hierarchical Error Evaluation: The Role of Medial-Frontal Cortex in Postural Control. Journal of Motor Behavior, 46(6), 381–387. https://doi.org/10/gd32z3

Hassall, C. D., Holland, K., & Krigolson, O. E. (2013). What do I do now? An electroencephalographic investigation of the explore/exploit dilemma. Neuroscience, 228, 361–370. https://doi.org/10/f4j5r4

Krigolson, O. E., Hassall, C. D., Balcom, L., & Turk, D. (2013). Perceived ownership impacts reward evaluation within medial-frontal cortex. Cognitive, Affective, & Behavioral Neuroscience, 13(2), 262–269. https://doi.org/10/gd32z5

Krigolson, O. E., Hassall, C. D., & Handy, T. C. (2013). How We Learn to Make Decisions: Rapid Propagation of Reinforcement Learning Prediction Errors in Humans. Journal of Cognitive Neuroscience, 26(3), 635–644. https://doi.org/10/gd32z4

Conference Proceedings

Weber, L.A., Ruesseler, M., Stahr, L., Grohn. J., Mezossy-Dona, L., Marshall, T., Hassall, C.D., O’Reilly, J., & Hunt, L. (2022). Decision-making in dynamic, continuously evolving environments: quantifying the flexibility of choice and exploration. Paper presented at the Fifth Annual Reinforcement Learning and Decision Making (RLDM) Conference, Providence, RI.

Hassall, C.D., & Krigolson, O.E. (2015). Human reinforcement learning in non-stationary environments. Paper presented at the Second Annual Reinforcement Learning and Decision Making (RLDM) Conference, Edmonton, AB. (link)

Hassall, C.D., Bhargava, R., Trappenberg, T., & Krigolson, O.E. (2012). A Robust Wall-Following Robot That Learns by Example. Paper presented at the Annual Dalhousie Computer Science In-House Conference (DCSI 2012), Halifax, NS. Extended abstract. (link)

Satel, J., Hassall, C.D., Krigolson, O.E., & Klein, R.M. (2012). On the benefits of using eye monitoring technology in the EEG laboratory. Paper presented at the Annual Dalhousie Computer Science In-House Conference (DCSI 2012), Halifax, NS. Extended abstract. (link)

Pritchard, B., Fels, S., d’Alessandro, N., Witvoet, M., Wang, J., Hassall, C., Day-Fraser, H., & Cadell, M. (2011). Performance: what does a body know? In Proceedings of the 2011 annual conference extended abstracts on Human factors in computing systems (CHI EA ‘11). ACM, New York, NY, USA, 2403-2407. (link)

Oral Presentations

Hassall, C. D., Harley, J., Kolling, N., & Hunt, L. T. (2020). Regression-based EEG analysis reveals temporally scaled signals during interval timing. Neuromatch Conference (NMC) third online meeting.

Hassall, C.D., Chia, M., and Krigolson, O.E. (2018). Triplets! Optimization of retinopathy diagnosis through triplet embedding. Northwest Cognition and Memory (NOWCAM) Annual Meeting, Richmond, BC.

Grey, T.B., Hassall, C.D., and Krigolson, O.E. (2018). Neural Responses to Expected and Unexpected Feedback During a Multi-Step Goal-Directed Task. Northwest Cognition and Memory (NOWCAM) Annual Meeting, Richmond, BC.

Trska, R., Williams, C.C.., Hassall, C.D., Holroyd, C.B., and Krigolson, O.E. (2018). Motor Learning: The Effect of Expectancy on Reward Positivity and Readiness Potential. Northwest Cognition and Memory (NOWCAM) Annual Meeting, Richmond, BC.

Hassall, C.D., Krigolson, O.E., and Holroyd, C.B. (2017). Context, control, and the anterior cingulate cortex. Northwest Cognition and Memory (NOWCAM) Annual Meeting, Burnaby, BC.

Krigolson, O.E., Hassall, C.D., and Wright, B. (2016). Thinking fast, thinking slow, thinking alpha? Cognitive Science Association for Interdisciplinary Learning (CSAIL) Annual Meeting, Hood River, OR.

Hassall, C.D., Silver, A., Turk, D.J., and Krigolson, O.E. (2015). Ownership and feedback processing: The neural basis for selfishness? Cognitive Science Association for Interdisciplinary Learning (CSAIL) Annual Meeting, Hood River, OR.

Hassall, C.D., and Krigolson, O.E. (2015). Exploring exploration: Electroencephalographic correlates of the explore/exploit dilemma. Northwest Cognition and Memory (NOWCAM) Annual Meeting, Bellingham, WA.

MacLean, S., Ishigami, Y., Hassall, C., Krigolson, O. E., & Eskes, G (May, 2014). The behavioural and neural mechanisms in prism adaptation treatment for spatial neglect. Talk given at the Rehabilitation Research Day, Nova Scotia Rehabilitation Centre, Halifax, NS, Canada

Hassall, C.D., and Krigolson, O.E. (2014). Learning what matters most. Psychology and Neuroscience 40th Annual Graham Goddard In-House Conference, Dalhousie University, Halifax, NS.

Reden, R., Hassall, C.D., and Krigolson, O.E. (2014). Champ vs. chump: Knowledge of opponent ability modulates reward processing in medial-frontal cortex. Psychology and Neuroscience 40th Annual Graham Goddard In-House Conference, Dalhousie University, Halifax, NS.

Howse, A. D., Michaud, C., Hassall, C., Krigolson, O. E. (May, 2013) Not you again! The effect of varying opponents on reward processing within the medial frontal cortex. Poster presentation at the Science Atlantic Undergraduate Conference, Halifax, NS, Canada.

Dmytriw, A., Hassall, C.D., Nouwens, S., Handy, T.C., and Krigolson, O.E. (2013). The Impact of Experience on the Implicit Visuomotor Response. Canadian National Medical Student Research Symposium, Winnipeg, MB.

Hassall, C.D., and Krigolson, O.E. (2013). Wake up and smell the shifting probabilistic outcomes. Psychology and Neuroscience 39th Annual Graham Goddard In-House Conference, Dalhousie University, Halifax, NS.

Krigolson, O., and Hassall, C.D. (2012). Aging and the brain: Is reduced medial-frontal cortex responsible for movement deficits in the elderly? Nova Scotia Centre for Aging Conference, Halifax, NS.

Hassall, C.D., Holland, K., Pleskac, T.J., and Krigolson, O.E. (2012). What do I do now? Exploration and exploitation in a sequential risk-taking task. Psychology and Neuroscience 38th Annual Graham Goddard In-House Conference, Dalhousie University, Halifax, NS.

Poster Presentations

Yan, Y., & Hunt, L.T., Hassall, C.D. (2022). Feedback-related neural activity observed in a drumming task predicts subsequent timing performance. Poster presented at the Federation of European Neuroscience Societies (FENS) Annual Meeting, Paris, France. *co-senior authors.

Stahr, L., Weber, L., Brown, K., Mezossy-Dona, L., Hassall, C.D., & Hunt, L.T. (2022). Novel continuous sensory processing and decision-making paradigm exhibits high test-retest reliability across neural and behavioural measures. Poster presented at the Federation of European Neuroscience Societies (FENS) Annual Meeting, Paris, France.

Weber, L., Ruesseler, M., Stahr, L., Mezossy-Dona, L., Hassall, C.D., Marshall, T., O’Reilly, J., Hunt, L.T. (2022). Decision-making in dynamic, continuously evolving environments: A novel task design to reliably quantify the flexibility of decision formation and its neural signatures. Poster presented at the Federation of European Neuroscience Societies (FENS) Annual Meeting, Paris, France.

Yan, Y., & Hunt, L.T., Hassall, C.D. (2022). The differential effect of prediction error and information on timing in a drumming task. Poster presented at the Computational Principles of Prefrontal Cortex (CPPC) Annual Meeting, Oxford, UK. *co-senior authors.

Weber, L.A., Ruesseler, M., Stahr, L., Grohn, J., Mezossy-Dona, L., Marshall, T., Hassall, C.D., O’Reilly, J., Hunt, L. (2022). Decision-making in dynamic, continuously evolving environments: quantifying the flexibility of choice and exploration computations. Poster presented at the Computational Principles of Prefrontal Cortex (CPPC) Annual Meeting, Oxford, UK.

Hassall, C.D., McDonald, C.G., & Krigolson, O.E. (2019). Decisions to explore are preceded by neural interruption and response conflict. Poster presented at the Cognitive Neuroscience Society (CNS) Annual Meeting, San Francisco, CA.

Hassall, C.D., Hajcak, G, & Krigolson, O.E. (2018). The role of action, choice, and predictive cues in human reinforcement learning. Poster presented at the Cognitive Neuroscience Society (CNS) Annual Meeting, Boston, MA.

Kapen, M., Hassall, C.D., and Krigolson, O.E. (2018). Neural Representations of Risk and Ambiguity. Poster presented at the Northwest Cognition and Memory (NOWCAM) Annual Meeting, Richmond, BC.

Chia, M., Hassall, C.D., Holroyd, C.B., Wright, B., and Krigolson, O.E. (2018). Implicit Strategies for Diabetic Retinopathy Classification: Similarity & Perceptual Space. Poster presented at the Northwest Cognition and Memory (NOWCAM) Annual Meeting, Richmond, BC.

Hassall, C.D., Williams, C.C., & Krigolson, O.E. (2017). P300 scaling: Value, average reward, and the framing effect. Poster presented at the Organization for Human Brain Mapping (OHBM) annual meeting, Vancouver, BC.

Norton, A., Williams, C.C., Hassall, C.D., Wright, B., Colin, F.L., & Krigolson, O.E. (2017). A validation of a low-cost portable EEG system. Poster presented at the Organization for Human Brain Mapping (OHBM) annual meeting, Vancouver, BC.

Howse, A., Hassall, C., Walzak, A., Wright, B., and Krigolson, O. E. (2016). Investigation of Physician Fatigue Through Medical Student Assessment in On-Call Simulation. Poster presented at the Cognitive Neuroscience Society Annual Meeting, New York, NY.

Hassall, C.D., Williams, C.C., & Krigolson, O.E. (2016). Good, better, best: Electroencephalographic responses scale to reward value. Poster presented at the 77th Annual Convention for the Canadian Psychological Association (CPA), Victoria, BC.

Hassall, C.D., Eskes, G.A., & Krigolson, O.E. (2016). The impact of aging on high-level postural feedback processing. Poster presented at the Cognitive Neuroscience Society (CNS) Annual Meeting, New York, NY.

Hassall, C.D., & Krigolson, O.E. (2015). From alpha to theta: Reward distribution knowledge impacts decision making style. Poster presented at the Fifty-Fifth Annual Meeting of the Society for Psychophysiological Research (SPR), Seattle, WA.

Howse, A., Hassall, C.D., & Krigolson, O.E. (2015). Alcohol hangover impacts reward processing within the medial-frontal cortex. Poster presented at the Fifty-Fifth Annual Meeting of the Society for Psychophysiological Research (SPR), Seattle, WA.

Williams, C., Hassall, C.D., & Krigolson, O.E. (2015). Reward expectancy and the reward positivity: A non-linear relationship. Poster presented at the Fifty-Fifth Annual Meeting of the Society for Psychophysiological Research (SPR), Seattle, WA.

Krigolson, O.E., Hassall, C.D., Christie, J., & Masson, M. (2015). Embracing the “new statistics” in ERP data analysis. Poster presented at the Fifty-Fifth Annual Meeting of the Society for Psychophysiological Research (SPR), Seattle, WA.

Hassall, C.D., Silver, A., & Krigolson, O.E. (2015). Reward positivities reflect prediction errors in a four-armed bandit task. Poster presented at the Cognitive Neuroscience Society (CNS) Annual Meeting, San Francisco, CA.

Krigolson, O.E., & Hassall, C.D. (2015). Thinking fast, thinking slow, thinking alpha?. Poster presented at the Cognitive Neuroscience Society (CNS) Annual Meeting, San Francisco, CA.

Hassall, C.D., Connor, P.C., Trappenberg, T.P., & Krigolson, O.E.. Electroencephalographic evidence for the sparsity heuristic. Program No. 555.17. 2014 Neuroscience Meeting Planner. Washington, DC: Society for Neuroscience, 2014. Online.

Howse, A.D., Hassall, C.D., & Krigolson, O.E.. The impact of alcohol hangover on reward processing within medial-frontal cortex. Program No. 457.20. 2014 Neuroscience Meeting Planner. Washington, DC: Society for Neuroscience, 2014. Online.

Krigolson, O.E., & Hassall, C.D.. Electroencephalographic correlates of system two decision making Program No. 555.11. 2014 Neuroscience Meeting Planner. Washington, DC: Society for Neuroscience, 2014. Online.

Hassall, C.D., & Krigolson, O.E. (2014). When reinforcement learning is not enough: Examining the role of midbrain reward processing in non-stationary environments. Poster presented at the Cognitive Neuroscience Society (CNS) Annual Meeting, Boston, MA.

Howse, A. D., Peloquin, M. P. J., Doherty, S., Hassall, C. D., & Krigolson, O. E. (2014). The impact of socioeconomic status on reward learning in the medial-frontal Cortex. Poster presented at the Cognitive Neuroscience Society (CNS) Annual Meeting, Boston, MA.

Weiler, J., Hassall, C.D., Krigolson, O.E., & Heath, M. (May, 2014). Unidirectional switch-costs in oculomotor control are a result of stimulus updating: Evidence from electroencephalography. Poster presentation at the Vision Sciences Society Meeting, St. Pete’s Beach, FL, USA.

Krigolson, O.E., Whitaker, S., MacKenzie, L., & Hassall, C.D. (May, 2014). Hot or not? Perceived attractiveness activates reward processes within medial-frontal cortex. Poster presentation at the Vision Sciences Society Meeting, St. Pete’s Beach, FL, USA.

Maclean, S., Ishigami, Y., Hassall, C.D., Krigolson, O.E., & Eskes, G. (2014). ERP Components Underlying Prism Adaptation. Poster presented at the Cognitive Neuroscience Society (CNS) Annual Meeting, Boston, MA.

Redden, R.S., South, M.E., Michaud, C.C., Howse, A.D., Hassall, C.D., & Krigolson, O.E. (2014). Sure wins and losses: Opponent perception activates reward processing within medial-frontal cortex. Poster presented at the Cognitive Neuroscience Society (CNS) Annual Meeting, Boston, MA.

Whittaker, S., MacKenzie, L., Hassall, C.D., Rosen, N., & Krigolson, O.E. (2014). Hot or Not? Perceived Attractiveness Activates Reward Processes Within Medial-Frontal Cortex. Poster presented at the Cognitive Neuroscience Society (CNS) Annual Meeting, Boston, MA.

Trska, R., Solomon, J., Hassall, C., & Krigolson, O. E. (2014). Expectancy drives what we learn: Evidence from a modified reward-prediction time estimation task. Poster presentation at the Science Atlantic Student Conference, Fredericton, NB, Canada.

MacLean, S., Ishigami, Y., Hassall, C., Krigolson, O. E., & Eskes, G (2014). ERPs underlying prism adaptation treatment for spatial neglect. Poster Presentation at the Brain Repair Centre Research and Poster Day, Life Sciences Research Institute, Halifax, NS, Canada.

MacLean, S., Ishigami, Y., Hassall, C., Krigolson, O. E., & Eskes, G (2014). ERPs underlying prism adaptation. Poster presentation at the Psychology and Neuroscience 40th Annual Graham Goddard In-House Conference, Dalhousie University, Halifax, NS, Canada.

Burke, L., Alsip, L., Hodder, N., Vokey, S., Hassall, C.D., & Krigolson, O.E. (2014). Neuroeconomics: Changes in neural activity during learning. Poster presented at the Psychology and Neuroscience 40th Annual Graham Goddard In-House Conference, Dalhousie University, Halifax, NS.

Howse, A., Peloquin, M., Hassall, C.D., and Krigolson, O.E. (2014). Is my hangover affecting my ability to learn? Neurological evidence from electroencephalography. Psychology and Neuroscience 40th Annual Graham Goddard In-House Conference, Dalhousie University, Halifax, NS.

Hassall, C.D., Michaud, C.C., & Krigolson, O.E. (2013). Online Ocular Artifact Detection and Rejection. Poster presented at the Vision Sciences Society (VSS) Annual Meeting, Naples, FL.

Krigolson, O.E., Gallant, H., & Hassall, C.D. (2013). More Blobs: A Training Study Examining the Role of Medial-Frontal Cortex in the Development of Perceptual Expertise. Poster presented at the Vision Sciences Society (VSS) Annual Meeting, Naples, FL.

Heath, M., MacLean, S., Hassall, C.D., & Krigolson, O.E. (2013). The P300 component and the visuomotor mental rotation task: context-updating scales to angle of rotation. Poster presented at the Vision Sciences Society (VSS) Annual Meeting, Naples, FL.

Satel, J., Hassall, C.D., Krigolson, O.E., & Klein, R.M. (2013). Camera-based eye tracking improves the signal-to-noise ratio of EEG. Poster presented at the Vision Sciences Society (VSS) Annual Meeting, Naples, FL.

Hassall, C.D. & Krigolson, O.E. (2013). Electroencephalographic and modeling evidence for learning-driven attentional capture. Poster presented at the Cognitive Neuroscience Society (CNS) Annual Meeting, San Francisco, CA.

MacLean, S., Hassall, C.D. & Krigolson, O.E. (2013). Experience and expertise modulate reward processing within medial-frontal cortex. Poster presented at the Cognitive Neuroscience Society (CNS) Annual Meeting, San Francisco, CA.

Doherty, S.K., Bow, L., Hassall, C.D., & Krigolson, O.E. (2013). Reinforcement learning and cognitive maps: The role of medial-frontal cortex. Poster presented at the Cognitive Neuroscience Society (CNS) Annual Meeting, San Francisco, CA.

d’Entremont, G., Panzarasa, J., Blakely, P., Brawley-Hogg, A., Jenkins, E., Marsh, K., Hassall, C.D., & Krigolson, O.E. (2013). Sparsity Heuristics and Attention. Poster presented at the Psychology and Neuroscience 39th Annual Graham Goddard In-House Conference, Dalhousie University, Halifax, NS.

MacLean, S., Hassall, C.D., & Krigolson, O.E. (2013) Reward processing system active during motor learning and sensitive to motor expertise. Poster presented at the Psychology and Neuroscience 39th Annual Graham Goddard In-House Conference, Dalhousie University, Halifax, NS.

MacLean, S., Hassall, C., Heath, M., & Krigolson, O. E. (2013). P300 sensitive to angular disparity during visuomotor rotation task. Poster presentation at the Science Atlantic Psychology Conference, Saint Mary’s University, Halifax NS.

Dmytriw, A., Hassall, C.D., Nouwens, S., Handy, T.C., & Krigolson, O.E. (2013). The impact of experience on the implicit visuomotor response. Poster presentation at the Canadian National Medical Student Research Symposium, Winnipeg, MB, Canada.

Hassall, C.D., Turk, D.J., & Krigolson, O.E. (2012). Modelling the effect of perceived ownership on reward evaluation. Poster presented at the Cognitive Neuroscience Society (CNS) Annual meeting, Chicago, IL.

Krigolson, O.E., Hassall, C.D., & Turk, D.J. (2012). Object ownership biases reward evaluation within medial-frontal cortex. Poster presented at the Cognitive Neuroscience Society (CNS) Annual Meeting, Chicago, IL.

Hassall, C.D., & Krigolson, O.E. (2012). Evidence for High-Level Processing of Postural Errors. Poster presented at the Canadian Society for Psychomotor Learning and Sport Psychology (SCAPPS) Conference, Halifax, NS.

MacLean, S., Hassall, C.D., Heath, M., & Krigolson, O.E. (2012). An Electroencephalographic Analysis of Mental Visuomotor Rotation. Poster presented at the Canadian Society for Psychomotor Learning and Sport Psychology (SCAPPS) Conference, Halifax, NS.

Hassall, C.D., Connor, P., Trappenberg, T., & Krigolson, O.E. (2012). Medial-frontal reinforcement learning systems drive attentional allocation. Poster presented at the Attention Symposium, Halifax, NS.

Hassall, C., d’Alessandro, N., Fels, S., & Pritchard, B. (2011). Refactoring the DiVA: A Software Engineering Approach to Digital Music. Poster presented at the West Coast Composers Symposium, Vancouver, BC.

Krigolson, O.E., Hassall, C.D., & Handy, T.C. (2010) Electroencephalographic evidence for the rapid propagation of reinforcement learning prediction errors in medial-frontal cortex. Poster presented at the Society for Neuroscience (SfN) Meeting, San Diego, CA.

Nordstrom, K.I., Fels, S., Hassall, C.D., & Pritchard, B. (2010) Developing vowel mappings for an interactive voice synthesis system controlled by hand motions. Poster presented at the 158th Acoustical Society of America Meeting, Baltimore, MD.