Article

Morriss, J., Bell, T., Biagi, N., Johnstone, T. and van Reekum, C. M. (2021) Intolerance of uncertainty is associated with heightened responding in the prefrontal cortex during cue-signalled uncertainty of threat. Cognitive, Affective, & Behavioral Neuroscience. ISSN 1531-135X doi: https://doi.org/10.3758/s13415-021-00932-7

Morriss, J., Wake, S., Elizabeth, C. and Van Reekum, C. M. ORCID: https://orcid.org/0000-0002-1516-1101 (2021) I doubt it is safe: a meta-analysis of self-reported intolerance of uncertainty and threat extinction training. Biological Psychiatry Global Open Science. ISSN 2667-1743 doi: https://doi.org/10.1016/j.bpsgos.2021.05.011

Wake, S., Morriss, J., Johnstone, T., Van Reekum, C. M. ORCID: https://orcid.org/0000-0002-1516-1101 and Dodd, H. ORCID: https://orcid.org/0000-0003-1446-5338 (2021) Intolerance of uncertainty, and not social anxiety, is associated with compromised extinction of social threat. Behaviour Research and Therapy, 139. 103818. ISSN 0005-7967 doi: https://doi.org/10.1016/j.brat.2021.103818

Morriss, J., Biagi, N., Lonsdorf, T. B. and Andreatta, M. (2021) The role of intolerance of uncertainty in the acquisition and extinction of reward. The European Journal of Neuroscience, 53 (9). pp. 3063-3071. ISSN 0953-816X doi: https://doi.org/10.1111/ejn.15173

Morriss, J., Bennett, K. P. and Larson, C. L. (2021) I told you it was safe: associations between intolerance of uncertainty and different parameters of uncertainty during instructed threat of shock. Journal of Behavior Therapy and Experimental Psychiatry, 70. 101620. ISSN 0005-7916 doi: https://doi.org/10.1016/j.jbtep.2020.101620

Mertens, G. and Morriss, J. (2021) Intolerance of uncertainty and threat reversal: a conceptual replication of Morriss et al. (2019). Behaviour Research and Therapy, 137. 103799. ISSN 0005-7967 doi: https://doi.org/10.1016/j.brat.2020.103799

Lloyd, W. K., Morriss, J., Macdonald, B. ORCID: https://orcid.org/0000-0002-1927-6117, Joanknecht, K., Nihouarn, J. and Van Reekum, C. M. ORCID: https://orcid.org/0000-0002-1516-1101 (2021) Longitudinal change in executive function is associated with impaired top-down frontolimbic regulation during reappraisal in older adults. NeuroImage, 225. 117488. ISSN 1053-8119 doi: https://doi.org/10.1016/j.neuroimage.2020.117488

Morriss, J., Biagi, N. and Dodd, H. ORCID: https://orcid.org/0000-0003-1446-5338 (2020) Your guess is as good as mine: a registered report assessing physiological markers of fear and anxiety to the unknown in individuals with varying levels of intolerance of uncertainty. International Journal of Psychophysiology, 156. pp. 93-104. ISSN 0167-8760 doi: https://doi.org/10.1016/j.ijpsycho.2020.07.009

Morriss, J., Wake, S., Lindner, M., McSorley, E. and Dodd, H. (2020) How many times do I need to see to believe? The impact of intolerance of uncertainty and exposure experience on safety-learning and retention in young adults. International Journal of Psychophysiology, 153. pp. 8-17. ISSN 0167-8760 doi: https://doi.org/10.1016/j.ijpsycho.2020.04.012

Bauer, E. A., MacNamara, A., Sandre, A., Lonsdorf, T. B., Weinberg, A., Morriss, J. and Van Reekum, C. M. (2020) Intolerance of uncertainty and threat generalization: a replication and extension. Psychophysiology, 57 (5). e13546. ISSN 1540-5958 doi: https://doi.org/10.1111/psyp.13546

Morriss, J., Biagi, N. and van Reekum, C. M. (2020) It’s not over yet: the impact of worry on emotional recovery. Journal of Experimental Psychopathology, 11 (2). 204380872092994. ISSN 2043-8087 doi: https://doi.org/10.1177/2043808720929940

Wake, S., van Reekum, C. M., Dodd, H. and Morriss, J. (2020) The impact of intolerance of uncertainty and cognitive behavioural instructions on safety learning. Cognitive Therapy and Research, 44 (5). pp. 931-942. ISSN 0147-5916 doi: https://doi.org/10.1007/s10608-020-10113-4

Morriss, J. (2019) What do I do now? Intolerance of uncertainty is associated with discrete patterns of anticipatory physiological responding to different contexts. Psychophysiology, 56 (9). e13396. ISSN 0048-5772 doi: https://doi.org/10.1111/psyp.13396

Morriss, J. and McSorley, E. (2019) Intolerance of uncertainty is associated with reduced attentional inhibition in the absence of direct threat. Behaviour Research and Therapy, 118. pp. 1-6. ISSN 0005-7967 doi: https://doi.org/10.1016/j.brat.2019.03.011

Morriss, J., Christakou, A. and Van Reekum, C. M. (2019) Multimodal evidence for delayed threat extinction learning in adolescence and young adulthood. Scientific Reports, 9. 7748. ISSN 2045-2322 doi: https://doi.org/10.1038/s41598-019-44150-1

Morriss, J. and van Reekum, C. M. (2019) I feel safe when i know: contingency instruction promotes threat extinction in high intolerance of uncertainty individuals. Behaviour Research and Therapy, 116. pp. 111-118. ISSN 0005-7967 doi: https://doi.org/10.1016/j.brat.2019.03.004

Morriss, J., Saldarini, F., Chapman, C., Pollard, M. and van Reekum, C. M. (2019) Out with the old and in with the new: the role of intolerance of uncertainty in reversal of threat and safety. Journal of Experimental Psychopathology, 10 (1). pp. 1-11. ISSN 2043-8087 doi: https://doi.org/10.1177/2043808719834451

Morriss, J., Gell, M. and Van Reekum, C. (2019) The uncertain brain: a co-ordinate based meta-analysis of the neural signatures supporting uncertainty during different contexts. Neuroscience and Biobehavioral Reviews, 96. pp. 241-249. ISSN 0149-7634 doi: https://doi.org/10.1016/j.neubiorev.2018.12.013

Morriss, J., Bell, T., Johnstone, T., Van Reekum, C. M. and Hill, J. (2019) Social domain based modulation of neural responses to threat: the different roles of romantic partners versus friends. Social neuroscience, 14 (4). pp. 398-408. ISSN 1747-0927 doi: https://doi.org/10.1080/17470919.2018.1486735

Morriss, J., Saldarini, F. and Van Reekum, C. M. (2019) The role of threat level and intolerance of uncertainty in extinction. International Journal of Psychophysiology, 142. pp. 1-9. ISSN 0167-8760 doi: https://doi.org/10.1016/j.ijpsycho.2019.05.013

Morriss, J., Hoare, S. and van Reekum, C. M. (2018) Its time: a commentary on fear extinction in the human brain using fMRI. Neuroscience and Biobehavioral Reviews, 94. pp. 321-322. ISSN 0149-7634 doi: https://doi.org/10.1016/j.neubiorev.2018.06.025

Morriss, J., Chapman, C., Tomlinson, S. and Van Reekum, C. M. (2018) Escape the bear and fall to the lion: the impact of avoidance availability on threat acquisition and extinction. Biological Psychology, 138. pp. 73-80. ISSN 0301-0511 doi: https://doi.org/10.1016/j.biopsycho.2018.08.017

Morriss, J., McSorley, E. and Van Reekum, C. M. (2018) I don’t know where to look: the impact of intolerance of uncertainty on saccades towards non-predictive emotional face distractors. Cognition and Emotion, 32 (5). pp. 953-962. ISSN 0269-9931 doi: https://doi.org/10.1080/02699931.2017.1370418

McSorley, E., Morriss, J. and Van Reekum, C. (2017) Eye spy with my little eye: motivational relevance of visual stimuli guide eye-movements at different processing stages. Biological Psychology, 123. pp. 8-14. ISSN 0301-0511 doi: https://doi.org/10.1016/j.biopsycho.2016.11.008

McSorley, E. and Morriss, J. (2017) What you see is what you want to see: motivationally relevant stimuli can interrupt current resource allocation. Cognition & Emotion, 31 (1). pp. 168-174. ISSN 0269-9931 doi: https://doi.org/10.1080/02699931.2015.1081872

Morriss, J., Christakou, A. and Van Reekum, C. M. (2016) Nothing is safe: intolerance of uncertainty is associated with compromised fear extinction learning. Biological Psychology, 121. pp. 187-193. ISSN 0301-0511 doi: https://doi.org/10.1016/j.biopsycho.2016.05.001 (Part B)

Morriss, J., Henne, B. and Van Reekum, C. M. (2016) What is going on around here? Intolerance of uncertainty predicts threat generalization. PLoS ONE. ISSN 1932-6203 doi: https://doi.org/10.1371/journal.pone.0154494

Morriss, J., Christakou, A. and Van Reekum, C. M. (2015) Intolerance of uncertainty predicts fear extinction in amygdala-ventromedial prefrontal cortical circuitry. Biology of Mood & Anxiety Disorders, 5 (1). 4. ISSN 2045-5380 doi: https://doi.org/10.1186/s13587-015-0019-8

Morriss, J., Taylor, A. N. W., Roesch, E. and Van Reekum, C. (2013) Still feeling it: the time course of emotional recovery from an attentional perspective. Frontiers in Human Neuroscience, 7. 201. ISSN 1662-5161 doi: https://doi.org/10.3389/fnhum.2013.00201

Thesis

Morriss, J. (2016) The role of development and anxious disposition in fear regulation. PhD thesis, University of Reading.