Laurel S Morris University positionPhD student DepartmentsDepartment of Psychiatry and Department of Psychology InstitutesBehavioural and Clinical Neuroscience Institute Research ThemeInterestsI study disorders of addiction, focussing on correlates of impulsivity and compulsivity. I am also interested in psychopharmacology; how neurotransmitter dynamics of neural circuits influence cognition. Research Focus
EquipmentBehavioural analysis Magnetic resonance imaging (MRI) Neuropsychological testing CollaboratorsNo collaborators listed Associated News Items
Key publicationsMorris LS, Kundu P, Baek K, Irvine M, Mechelmans D, Wood J, Harrison NA, Robbins TW, Bullmore ET, Voon V (2015), “Jumping the gun: mapping neural correlates of waiting impulsivity and relevance across alcohol misuse” Biol Psychiatry Morris LS, Kundu P, Dowell N, Mechelmans D, Favre P, Irvine MA, Robbins TW, Daw ND, Bullmore ET, Harrison NA, Voon V (2015), “Fronto-striatal organization: defining functional and microstructural substrates of behavioural flexibility” Cortex Publications2017Morris LS, Ba BT, Baek K, Chang-Webb YC, Mitchell S, Strelchuk D, Mikheenko Y, Phillips W, Zandi M, Jenaway A, Walsh C. (2017), “Disrupted avoidance learning in functional neurological disorder. ” NeuroImage: Clinical. Morris LS, Dowell NG, Cercignani M, Harrison NA, Voon V (2017), “Binge drinking differentially affects cortical and subcortical microstructure” Addiction Biology Morris, L. S., Baek, K., Tait, R., Elliott, R., Ersche, K. D., Flechais, R., McGonigle, J., Murphy, A., Nestor, L. J., Orban, C., Passetti, F., Paterson, L. M., Rabiner, I., Reed, L., Smith, D., Suckling, J., Taylor, E. M., Bullmore, E. T., Lingford-Hughes, A. R., Deakin, B., Nutt, D. J., Sahakian, B. J., Robbins, T. W., Voon, V., and ICCAM Consortium (2017), “Naltrexone ameliorates functional network abnormalities in alcohol-dependent individuals. ” Addiction Biology, doi: 10.1111/adb.12503. 2016C Schmidt, LS Morris, TL Kvamme, P Hall, T Birchard, V Voon (2016), “Compulsive sexual behavior: Prefrontal and limbic volume and interactions ” Human Brain Mapping doi:10.1002/hbm.23447 K Baek, LS Morris, P Kundu, V Voon (2016), “Disrupted resting-state brain network properties in obesity: decreased global and putaminal cortico-striatal network efficiency ” Psychological Medicine 2:1-12 Morris LS, Baek K, Voon V (2016), “Distinct cortico-striatal connections with subthalamic nucleus underlie facets of compulsivity” Cortex Morris LS, Voon V (2016), “Dimensionality of Cognitions in Behavioral Addictions” Curr Behav Neurosci Rep RB Dudas, TB Mole, LS Morris, C Denman, E Hill, B Szalma, D Evans, P Fletcher (2016), “Amygdala and dlPFC abnormalities, with aberrant connectivity and habituation in response to emotional stimuli in females with BPD ” Journal of Affective Disorders 208: 460–466 Voon V, Droux F, Morris L, Chabardes S, Bougerol T, David O, Krack P, Polosan M (2016), “Decisional impulsivity and the associative-limbic subthalamic nucleus in obsessive-compulsive disorder: stimulation and connectivity” Brain 2015Banca P, Morris LS, Mitchell S, Harrison NA, Potenza MN, Voon V (2015), “Novelty, conditioning and attentional bias to sexual rewards” J Psych Res Morris LS, Baek K, Kundu P, Harrison NA, Frank MJ, Voon V (2015), “Biases in the explore-exploit tradeoff in addictions: the role of avoidance of uncertainty” Neuropsychopharm Voon V, Baek K, Enander J, Worbe Y, Morris LS, Harrison NA, Robbins TW, Ruck C, Daw N (2015), “Motivation and value influences in the relative balance of goal-directed and habitual behaviours in obsessive-compulsive disorder” Transl Psych Voon V, Chang-Webb YC, Morris LS, Cooper E, Sethi A, Baek K, Grant J, Robbins TW, Harrison NA (2015), “Waiting impulsivity : the influence of acute methylphenidate and feedback.” Int J Neuropsychopharmacol Details 2014Morris LS (2014), “Notes of Importance” Science 345(6197): 630 Roeser RW, Vago DR, Pinela, C, Morris, LS, Taylor, C, Harrison, J (2014), “Contemplative Education: Cultivating Ethical Development through Mindfulness Training” Handbook of Moral and Character Education. 2nd ed. Vago, DR, Wallenstein GV, Morris LS (2014), “Hippocampus” Encyclopedia of Neurological Sciences, 2e, Academic Press Voon V, Mole TB, Banca P, Porter L, Morris L, Mitchell S, Lapa TR, Karr J, Harrison NA, Potenza MN, Irvine M (2014), “Neural Correlates of Sexual Cue Reactivity in Individuals with and without Compulsive Sexual Behaviours” PLoS One 9(7):e102419 Voon V, Morris LS, Irvine MA, Ruck C, Worbe Y, Derbyshire K, Rankov V, Schreiber LR, Odlaug BL, Harrison NA, Wood J, Robbins TW, Bullmore ET, Grant JE (2014), “Risk Taking in Disorders of Natural and Drug Rewards: Neural Correlates and Effects of Probability, Valence and Magnitude.” Neuropsychopharmacology Details 2013Wright ND, Morris LS, Guitart-Masip M, Dolan RJ (2013), “Manipulating the contribution of approach-avoidance to the perturbation of economic choice by valence.” Front Neurosci 7:228 Details Wright ND, Symmonds M, Morris LS, Dolan RJ (2013), “Dissociable Influences of Skewness and Valence on Economic Choice and Neural Activity” PLoS ONE 8(12): e83454 |