Email liana.machado@otago.ac.nz
Tel 64 3 479 7622
Visit Associate Professor Machado's profile
Cognitive Psychology and Neuropsychology
My laboratory researches the mechanisms and machinery underlying healthy brain functions and the cognitive deficits that emerge as a result of brain disease and advanced aging.
Understanding Brain Function and Dysfunction
To this end, we study patients suffering from neurological conditions (such as stroke and Parkinson's disease), as well as neurologically healthy young and aging adults. We then combine the knowledge gained from each of these groups so that we can advance the current understanding of brain function and brain dysfunction.
Visual Orienting
My main interest is in visual orienting, including attention and eye movements, with a particular focus on how more advanced brain structures orchestrate the activities of more primitive brain structures in order to generate strategic behaviours.
Publications
Nasrollahi, N., Jowett, T., & Machado, L. (2024). Effects of wearing a surgical face mask on cognitive functioning and mood states: A randomised controlled trial in young adults. Cognitive Processing. Advance online publication. doi: 10.1007/s10339-024-01238-5 Journal - Research Article
Ramos, A. A., Bertola, L., Figueiredo da Mata, F. A., Barbosa, M. G., Boaventura, V., Machado, L., … Ferri, C. P. (2024). Socioeconomic determinants of cognition among older adults in the Brazilian longitudinal study of aging (ELSI-Brazil): A life-course approach. Social Psychiatry & Psychiatric Epidemiology. Advance online publication. doi: 10.1007/s00127-024-02734-x Journal - Research Article
Stenling, A., Quensell, J., Kaur, N., & Machado, L. (2024). Stair climbing improves cognitive switching performance and mood in healthy young adults: A randomized controlled crossover trial. Journal of Cognitive Enhancement. Advance online publication. doi: 10.1007/s41465-024-00294-1 Journal - Research Article
Alexander, M., & Machado, L. (2024). Chronic exercise and neuropsychological function in healthy young adults: A randomised controlled trial investigating a running intervention. Cognitive Processing. Advance online publication. doi: 10.1007/s10339-024-01177-1 Journal - Research Article
Ramos, A. A., & Machado, L. (2024). 3-Year test-retest reliability in Parkinson's disease and healthy older adults: The Parkinson's progression markers initiative study. Applied Neuropsychology: Adult. Advance online publication. doi: 10.1080/23279095.2024.2303718 Journal - Research Article
2024
Journal - Research Article
Nasrollahi, N., Jowett, T., & Machado, L. (2024). Effects of wearing a surgical face mask on cognitive functioning and mood states: A randomised controlled trial in young adults. Cognitive Processing. Advance online publication. doi: 10.1007/s10339-024-01238-5
Ramos, A. A., Bertola, L., Figueiredo da Mata, F. A., Barbosa, M. G., Boaventura, V., Machado, L., … Ferri, C. P. (2024). Socioeconomic determinants of cognition among older adults in the Brazilian longitudinal study of aging (ELSI-Brazil): A life-course approach. Social Psychiatry & Psychiatric Epidemiology. Advance online publication. doi: 10.1007/s00127-024-02734-x
Stenling, A., Quensell, J., Kaur, N., & Machado, L. (2024). Stair climbing improves cognitive switching performance and mood in healthy young adults: A randomized controlled crossover trial. Journal of Cognitive Enhancement. Advance online publication. doi: 10.1007/s41465-024-00294-1
Alexander, M., & Machado, L. (2024). Chronic exercise and neuropsychological function in healthy young adults: A randomised controlled trial investigating a running intervention. Cognitive Processing. Advance online publication. doi: 10.1007/s10339-024-01177-1
Ramos, A. A., & Machado, L. (2024). 3-Year test-retest reliability in Parkinson's disease and healthy older adults: The Parkinson's progression markers initiative study. Applied Neuropsychology: Adult. Advance online publication. doi: 10.1080/23279095.2024.2303718
Kouwenhoven, M., & Machado, L. (2024). Age differences in inhibitory and working memory functioning: Limited evidence of system interactions. Aging, Neuropsychology & Cognition, 31(3), 524-555. doi: 10.1080/13825585.2023.2214348
Ramos, A. A., Garvey, A., Cutfield, N. J., & Machado, L. (2024). Forward and backward spatial recall in Parkinson's disease and matched controls: A 1-year follow-up study. Applied Neuropsychology: Adult, 31(4), 647-656. doi: 10.1080/23279095.2022.2059372
2023
Journal - Research Article
Wong, Y.-S., Pat, N., & Machado, L. (2023). Commonalities between mind wandering and task-set switching: An event-related potential study. Neuropsychologia, 185, 108585. doi: 10.1016/j.neuropsychologia.2023.108585
Ramos, A. A., Galiano-Castillo, N., & Machado, L. (2023). Cognitive functioning of unaffected first-degree relatives of individuals with late-onset Alzheimer's disease: A systematic literature review and meta-analysis. Neuropsychology Review, 33, 659-674. doi: 10.1007/s11065-022-09555-2
Journal - Research Other
Wong, Y.-S., Willoughby, A. R., & Machado, L. (2023). Reconceptualizing mind wandering from a switching perspective. Psychological Research, 87, 357-372. doi: 10.1007/s00426-022-01676-w
Conference Contribution - Published proceedings: Abstract
Berryman, A., & Machado, L. (2023). Cognition and electrophysiological biomarkers of chronic pelvic pain in women with endometriosis. Proceedings of the Psycolloquy Symposium. (pp. 22). Dunedin, New Zealand: Department of Psychology, University of Otago. Retrieved from https://www.otago.ac.nz/psychology/research/otago059081.html
McNeill, R., & Machado, L. (2023). COVID-19 may adversely impact brain haemodynamics and exercise-cognition relationships in undergraduate students without compromising cognitive performance. Proceedings of the Psycolloquy Symposium. (pp. 20). Dunedin, New Zealand: Department of Psychology, University of Otago. Retrieved from https://www.otago.ac.nz/psychology/research/otago059081.html
2022
Journal - Research Article
Wong, Y.-S., Willoughby, A. R., & Machado, L. (2022). Spontaneous mind-wandering tendencies linked to cognitive flexibility in young adults. Consciousness & Cognition, 102, 103335. doi: 10.1016/j.concog.2022.103335
Nasrollahi, N., Jowett, T., & Machado, L. (2022). Emotional information processing in young and older adults: Meta-analysis reveals faces elicit distinct biases. European Journal of Ageing, 19, 369-379. doi: 10.1007/s10433-021-00676-w
Stenling, A., Sörman, D. E., Lindwall, M., & Machado, L. (2022). Bidirectional within- and between-person relations between physical activity and cognitive function. Journals of Gerontology Series B, 77(4), 704-709. doi: 10.1093/geronb/gbab234
White, N., Kouwenhoven, M., & Machado, L. (2022). Short-term retest performance in young versus older adults: Consideration of integrated speed-accuracy measures. Experimental Aging Research, 48(1), 68-85. doi: 10.1080/0361073x.2021.1919475
Conference Contribution - Verbal presentation and other Conference outputs
Machado, L. (2022, February). Cognitive functioning as we age: Improving the trajectory. Verbal presentation at the Collaboration of Ageing Research Excellence (CARE) Research Symposium, [Online].
2021
Journal - Research Article
Nasrollahi, N., Quensell, J., & Machado, L. (2021). Effects of a brief stair-climbing intervention on cognitive functioning and mood states in older adults: A randomized controlled trial. Journal of Aging & Physical Activity, 30(3), 455-465. doi: 10.1123/japa.2021-0125
Shoemaker, L. N., Wilson, L. C., Lucas, S. J. E., Machado, L., Walker, R. J., & Cotter, J. D. (2021). Indomethacin markedly blunts cerebral perfusion and reactivity, with little cognitive consequence in healthy young and older adults. Journal of Physiology, 599(4), 1097-1113. doi: 10.1113/jp280118
Stenling, A., Sörman, D. E., Lindwall, M., Hansson, P., Ljungberg, J., & Machado, L. (2021). Physical activity and cognitive function: Between-person and within-person associations and moderators. Aging, Neuropsychology & Cognition, 28(3), 392-417. doi: 10.1080/13825585.2020.1779646
Guiney, H., Keall, M., & Machado, L. (2021). Volunteering in older adulthood is associated with activity engagement and cognitive functioning. Aging, Neuropsychology & Cognition, 28(2), 253-269. doi: 10.1080/13825585.2020.1743230
Journal - Research Other
Ramos, A. A., & Machado, L. (2021). A comprehensive meta-analysis on short-term and working memory dysfunction in Parkinson's Disease. Neuropsychology Review, 31, 288-311. doi: 10.1007/s11065-021-09480-w
Machado, L. (2021). Understanding cognition and how it changes with aging, brain disease, and lifestyle choices. Journal of the Royal Society of New Zealand, 51(1), 128-142. doi: 10.1080/03036758.2020.1796102
Conference Contribution - Published proceedings: Abstract
Nasrollahi, N., & Machado, L. (2021). Effects of wearing face masks on cognitive functioning and mood states: A randomised controlled trial in young adults. New Zealand Medical Journal, 134(1547), (pp. 137). Retrieved from https://www.nzma.org.nz/journal
Wong, Y.-S., Willoughby, A., & Machado, L. (2021). Exploring the role of cognitive flexibility in mind wandering. Proceedings of the University of Otago Student Research Symposium: Te Wānaka Rakahau: Ākoka. (pp. 64). [Abstract]
Cotter, J. D., Gibbons, T. D., Thomas, K. N., Wilson, L. C., & Machado, L. (2021). Potential and pitfalls with exercise and environmental stress for brain health. New Zealand Medical Journal, 134(1539), (pp. 90). Retrieved from https://www.nzma.org.nz/journal
2020
Journal - Research Article
Shoemaker, L. N., Wilson, L. C., Lucas, S. J. E., Machado, L., & Cotter, J. D. (2020). Acute exercise-related cognitive effects are not attributable to changes in end-tidal CO2 or cerebral blood velocity. European Journal of Applied Physiology, 120, 1637-1649. doi: 10.1007/s00421-020-04393-7
White, N., Naldoza-Drake, P., Black, K., Scullion, L., & Machado, L. (2020). Can improving the nutritional content of bread enhance cognition? Cognitive outcomes from a randomized controlled trial. Journal of Cognitive Enhancement, 4, 167-178. doi: 10.1007/s41465-019-00149-0
Journal - Research Other
Ramos, A. A., Hamdan, A. C., & Machado, L. (2020). A meta-analysis on verbal working memory in children and adolescents with ADHD. Clinical Neuropsychologist, 34(5), 873-898. doi: 10.1080/13854046.2019.1604998
Conference Contribution - Published proceedings: Abstract
Wong, Y.-S., Willoughby, A. R., & Machado, L. (2020). Investigation of mind wandering and its relationship with task switching. Proceedings of the Psycolloquy Symposium. (pp. 20). Dunedin, New Zealand: Department of Psychology, University of Otago. Retrieved from https://www.otago.ac.nz/psychology/research/otago059081.html
Shoemaker, L. N., Wilson, L. C., Lucas, S. J. E., Machado, L., Walker, R. J., & Cotter, J. D. (2020). Effect of cerebral blood flow on cognition across healthy adulthood. FASEB Journal, 34(Suppl. 1). doi: 10.1096/fasebj.2020.34.s1.06931
Other Research Output
Machado, L. (2020, March). Healthy and ageing brains. Neurological Foundation of New Zealand Brain Awareness Month Otago Brain Day, Dunedin, New Zealand. [Public Seminar].
2019
Journal - Research Article
Stenling, A., Moylan, A., Fulton, E., & Machado, L. (2019). Effects of a brief stair-climbing intervention on cognitive performance and mood states in healthy young adults. Frontiers in Psychology, 10, 2300. doi: 10.3389/fpsyg.2019.02300
Shoemaker, L. N., Wilson, L. C., Lucas, S. J. E., Machado, L., Thomas, K. N., & Cotter, J. D. (2019). Swimming-related effects on cerebrovascular and cognitive function. Physiological Reports, 7(20), e14247. doi: 10.14814/phy2.14247
Shoemaker, L. N., Wilson, L. C., Lucas, S. J. E., Machado, L., & Cotter, J. D. (2019). Cerebrovascular regulation is not blunted during mental stress. Experimental Physiology, 104, 1678-1687. doi: 10.1113/ep087832
Machado, L., & Devine, A. (2019). Endogenous modulation of compatibility effects: An investigation into the temporal dynamics. Visual Cognition, 27(2), 120-126. doi: 10.1080/13506285.2019.1611684
Guiney, H., Lucas, S. J. E., Cotter, J. D., & Machado, L. (2019). Investigating links between habitual physical activity, cerebrovascular function, and cognitive control in healthy older adults. Neuropsychologia, 125, 62-69. doi: 10.1016/j.neuropsychologia.2019.01.011
White, N., Flannery, L., McClintock, A., & Machado, L. (2019). Repeated computerized cognitive testing: Performance shifts and test–retest reliability in healthy older adults. Journal of Clinical & Experimental Neuropsychology, 41(2), 179-191. doi: 10.1080/13803395.2018.1526888
Machado, L., Thompson, L. M., & Brett, C. H. R. (2019). Visual analogue mood scale scores in healthy young versus older adults. International Psychogeriatrics, 31(3), 417-424. doi: 10.1017/S1041610218000996
Conference Contribution - Published proceedings: Abstract
Nasrollahi, N., & Machado, L. (2019). Age differences in the processing of emotional information: A meta-analysis investigating face versus non-face pictures as potential moderators. Proceedings of the 39th Australasian Neuroscience Society (ANS) Annual Scientific Meeting. 11928. Retrieved from https://www.ans.org.au
Conference Contribution - Poster Presentation (not in published proceedings)
Shoemaker, L. N., Wilson, L. C., Lucas, S. J. E., Machado, L., Walker, R. J., & Cotter, J. D. (2019, September). Effect of cerebral blood flow on cognition across healthy adulthood. Poster session presented at the Medical Sciences Congress (MedSci), Queenstown, New Zealand.
2018
Journal - Research Article
Chen, P. L., Stenling, A., & Machado, L. (2018). Evidence transcranial direct current stimulation can improve saccadic eye movement control in older adults. Vision, 2(4), 42. doi: 10.3390/vision2040042
Flannery, S. L., Jowett, T., Garvey, A., Cutfield, N. J., & Machado, L. (2018). Computerized testing in Parkinson's disease: Performance deficits in relation to standard clinical measures. Journal of Clinical & Experimental Neuropsychology, 40(10), 1062-1073. doi: 10.1080/13803395.2018.1485880
White, N., Forsyth, B., Lee, A., & Machado, L. (2018). Repeated computerized cognitive testing: Performance shifts and test–retest reliability in healthy young adults. Psychological Assessment, 30(4), 539-549. doi: 10.1037/pas0000503
Guiney, H., & Machado, L. (2018). Volunteering in the community: Potential benefits for cognitive aging. Journals of Gerontology Series B, 73(3), 399-408. doi: 10.1093/geronb/gbx134
Guiney, H., Keall, M., & Machado, L. (2018). Physical activity prevalence and correlates among New Zealand older adults. Journal of Aging & Physical Activity, 26(1), 75-83. doi: 10.1123/japa.2016-0393
Journal - Research Other
Hurley, R., & Machado, L. (2018). Using transcranial direct current stimulation to improve verbal working memory: A detailed review of the methodology. Journal of Clinical & Experimental Neuropsychology, 40(8), 790-804. doi: 10.1080/13803395.2018.1434133
Conference Contribution - Published proceedings: Abstract
Shoemaker, L. N., Wilson, L. C., Lucas, S. J. E., Machado, L., & Cotter, J. D. (2018). Is cognition related to arterial CO2 and cerebral blood flow reactivity to exercise? Journal of Sport & Exercise Science, 2(1), (pp. 35). doi: 10.36905/jses.2018.01.01
Shoemaker, L. N., Wilson, L. C., Lucas, S. J. E., Machado, L., & Cotter, J. D. (2018). Delineation of swimming-related effects on cerebral blood flow velocity. Journal of Sport & Exercise Science, 2(1), (pp. 22). doi: 10.36905/jses.2018.01.01
2017
Journal - Research Article
Brett, C. H. R., & Machado, L. (2017). Manual versus saccadic assessment of cognitive inhibition and switching in young and older adults. Psychological Assessment, 29(11), 1420-1425. doi: 10.1037/pas0000453
Chen, P. L., & Machado, L. (2017). Developing clinically practical transcranial direct current stimulation protocols to improve saccadic eye movement control. Journal of Eye Movement Research, 10(3), 5. doi: 10.16910/jemr.10.3.5
Morton, S. E., O'Hare, K. J. M., Maha, J. L. K., Nicolson, M. P., Machado, L., Topless, R., Merriman, T. R., & Linscott, R. J. (2017). Testing the validity of taxonic schizotypy using genetic and environmental risk variables. Schizophrenia Bulletin, 43(3), 633-643. doi: 10.1093/schbul/sbw108
Bierre, K. L., Lucas, S. J. E., Guiney, H., Cotter, J. D., & Machado, L. (2017). Cognitive difficulty intensifies age-related changes in anterior frontal hemodynamics: Novel evidence from near-infrared spectroscopy. Journals of Gerontology Series A, 72(2), 181-188. doi: 10.1093/gerona/glw061
Journal - Research Other
Hurley, R., & Machado, L. (2017). Using tDCS priming to improve brain function: Can metaplasticity provide the key to boosting outcomes? Neuroscience & Biobehavioral Reviews, 83, 155-159. doi: 10.1016/j.neubiorev.2017.09.029
2016
Journal - Research Article
Forsyth, B., Machado, L., Jowett, T., Jakobi, H., Garbe, K., Winter, H., & Glue, P. (2016). Effects of low dose ibogaine on subjective mood state and psychological performance. Journal of Ethnopharmacology, 189, 10-13. doi: 10.1016/j.jep.2016.05.022
Chen, P. L., & Machado, L. (2016). Age-related deficits in voluntary control over saccadic eye movements: Consideration of electrical brain stimulation as a therapeutic strategy. Neurobiology of Aging, 41, 53-63. doi: 10.1016/j.neurobiolaging.2016.02.010
2015
Journal - Research Article
Guiney, H., Lucas, S. J., Cotter, J. D., & Machado, L. (2015). Evidence cerebral blood-flow regulation mediates exercise-cognition links in healthy young adults. Neuropsychology, 29(1), 1-9. doi: 10.1037/neu0000124
Cameron, T. A., Lucas, S. J. E., & Machado, L. (2015). Near-infrared spectroscopy reveals link between chronic physical activity and anterior frontal oxygenated hemoglobin in healthy young women. Psychophysiology, 52(5), 609-617. doi: 10.1111/psyp.12394
Conference Contribution - Published proceedings: Abstract
Chen, P. L., & Machado, L. (2015). Voluntary eye movement control deficits in aging brains: Consideration of neuromodulation as an effective therapeutic strategy. Proceedings of the Psycolloquy Seminar. (pp. 10). Dunedin, New Zealand: Department of Psychology, University of Otago. Retrieved from http://www.otago.ac.nz/psychology/research/otago059081.html
Conference Contribution - Verbal presentation and other Conference outputs
Machado, L. (2015, June). Exercise-cognition links in young adults: Optimizing brain health and function through simple non-invasive methods. Verbal presentation at the 9th Annual Brain Health Research Centre Conference: Science for a Healthy Brain, Dunedin, New Zealand.
2013
Journal - Research Article
Wyatt, N., & Machado, L. (2013). Evidence inhibition responds reactively to the salience of distracting information during focused attention. PLoS ONE, 8(4), e62809. doi: 10.1371/journal.pone.0062809
Bos, H., & Machado, L. (2013). Aging delays strategic modulation of the fixation reflex. Psychology & Aging, 28(3), 796-801. doi: 10.1037/a0032015
Wyatt, N., & Machado, L. (2013). Distractor inhibition: Principles of operation during selective attention. Journal of Experimental Psychology: Human Perception & Performance, 39(1), 245-256. doi: 10.1037/a0027922
Guiney, H., & Machado, L. (2013). Benefits of regular aerobic exercise for executive functioning in healthy populations. Psychonomic Science, 20(1), 73-86. doi: 10.3758/s13423-012-0345-4
Machado, L., Guiney, H., & Struthers, P. (2013). Identity-based inhibitory processing during focused attention. Quarterly Journal of Experimental Psychology, 66(1), 138-159. doi: 10.1080/17470218.2012.701651
Conference Contribution - Published proceedings: Abstract
Machado, L., Guiney, H., Lucas, S., & Cotter, J. (2013). Exercise frequency predicts better inhibitory control and brain blood flow regulation in healthy young adults. Journal of Cognitive Neuroscience, (Suppl.), (pp. 159). [Abstract]
2011
Journal - Research Article
Machado, L., Guiney, H., & Mitchell, A. (2011). Famous faces demand attention due to reduced inhibitory processing. PLoS ONE, 6(5), e20544. doi: 10.1371/journal.pone.0020544
Murray, J. E., Machado, L., & Knight, B. (2011). Race and gender of faces can be ignored. Psychological Research, 75(4), 324-333. doi: 10.1007/s00426-010-0310-7
Conference Contribution - Published proceedings: Abstract
Machado, L., Wyatt, N., & Guiney, H. (2011). Inhibitory control and working memory in young and elderly adults. Cognitive Neuroscience Society Annual Meeting Program (A supplement of the Journal of Cognitive Neuroscience). (pp. 141). Davis, CA: CNS. [Abstract]
Conference Contribution - Verbal presentation and other Conference outputs
Machado, L. (2011, July). Controlling visual orienting: Age-related deficits and potential remedies. Verbal presentation at the Brain Health Research Centre Conference, Dunedin, New Zealand.
Other Research Output
Machado, L. (2011, March). Maintaining control over visual orienting: Age-related changes and potential remedies. Brain Day Dunedin, University of Otago, New Zealand. [Public Seminar].
2010
Conference Contribution - Published proceedings: Abstract
Machado, L., Wyatt, N., & Guiney, H. (2010). Inhibitory processes and working memory in aging brains. Proceedings of the 7th (FENS) Forum of European Neuroscience. 5, 145.14. Retrieved from http://fens2010.neurosciences.asso.fr/
2009
Journal - Research Article
van Koningsbruggen, M. G., Pender, T., Machado, L., & Rafal, R. D. (2009). Impaired control of the oculomotor reflexes in Parkinson's disease. Neuropsychologia, 47(13), 2909-2915. doi: 10.1016/j.neuropsychologia.2009.06.018
Machado, L., Devine, A., & Wyatt, N. (2009). Distractibility with advancing age and Parkinson's disease. Neuropsychologia, 47(7), 1756-1764. doi: 10.1016/j.neuropsychologia.2009.02.018
Conference Contribution - Published proceedings: Abstract
Machado, L., Devine, A., & Wyatt, N. (2009). Distractibility with advancing age and Parkinson's disease: Evidence of dysfunctional reactive inhibition. Cognitive Neuroscience Society Annual Meeting Program (A supplement to the Journal of Cognitive Neuroscience). (pp. 45). Davis, CA: CNS. [Abstract]
2008
Journal - Research Article
Arend, I., Machado, L., Ward, R., McGrath, M., Ro, T., & Rafal, R. D. (2008). The role of the human pulvinar in visual attention and action: Evidence from temporal-order judgement, saccade decision, and antisaccade tasks. Progress in Brain Research, 171, 475-483. doi: 10.1016/S0079-6123(08)00669-9
Conference Contribution - Published proceedings: Abstract
Machado, L., Arend, I., McGrath, M., Ro, T., Ward, R., & Rafal, R. (2008). The role of the human pulvinar in visual attention and action: Evidence from temporal order judgments, saccade decision and anti-saccade tasks. Cognitive Neuroscience Society Annual Meeting Program (A supplement of the Journal of Cognitive Neuroscience). (pp. 61). Davis, CA: CNS. [Abstract]
2007
Journal - Research Article
Machado, L., Wyatt, N., Devine, A., & Knight, B. (2007). Action planning in the presence of distracting stimuli: An investigation into the time course of distractor effects. Journal of Experimental Psychology: Human Perception & Performance, 33(5), 1045-1061.
Conference Contribution - Published proceedings: Abstract
Machado, L., Devine, A., & Wyatt, N. (2007). Distractibility in the aging and parkinsonian brain. Cognitive Neuroscience Society Annual Meeting Program (A supplement of the Journal of Cognitive Neuroscience). (pp. 128). Davis, CA: CNS. [Abstract]
Conference Contribution - Verbal presentation and other Conference outputs
Wyatt, N., & Machado, L. (2007, November). Habituation: A neglected mechanism of selective visual attention. Verbal presentation at the Psycolloquy Seminar, Dunedin, New Zealand.
2006
Conference Contribution - Published proceedings: Abstract
Machado, L., Wyatt, N., Devine, A., & Knight, B. (2006). Facilitatory and inhibitory effects of distracting stimuli. Cognitive Neuroscience Society Annual Meeting Program (A supplement of the Journal of Cognitive Neuroscience). (pp. 28). Davis, CA: CNS. [Abstract]
Conference Contribution - Poster Presentation (not in published proceedings)
Murray, J. E., Knight, B., & Machado, L. (2006, May). Processing gender and race in distractor faces is load dependent. Poster session presented at the Association for Psychological Science 18th Annual Convention, New York.
Machado, L., Wyatt, N., Devine, A., & Knight, B. (2006, April). Facilitatory and inhibitory effects of distracting stimuli. Poster session presented at the Cognitive Neuroscience Society Annual Meeting, San Francisco, California.
Conference Contribution - Verbal presentation and other Conference outputs
Wyatt, N., & Machado, L. (2006, November). When do we apply distractor inhibition during selective attention? Verbal presentation at the Psycolloquy Seminar, Dunedin, New Zealand.
Devine, A., Wyatt, N., & Machado, L. (2006, November). Distractibility, aging, and Parkinson's disease. Verbal presentation at the Psycolloquy Seminar, Dunedin, New Zealand.
2005
Journal - Research Article
Kellman, P. J., Garrigan, P., Shipley, T. F., Yin, C., & Machado, L. (2005). 3-D interpolation in object perception: Evidence from an objective performance paradigm. Journal of Experimental Psychology: Human Perception & Performance, 31(3), 558-583.
Marí-Beffa, P., Hayes, A. E., Machado, L., & Hindle, J. V. (2005). Lack of inhibition in Parkinson's disease: Evidence from a lexical decision task. Neuropsychologia, 43, 638-646.
Conference Contribution - Published proceedings: Abstract
Machado, L., Devine, A., & Knight, B. (2005). Inhibitory mechanisms of action planning. Journal of Cognitive Neuroscience, 17(Suppl. S), (pp. 38). [Abstract]
Conference Contribution - Poster Presentation (not in published proceedings)
Wyatt, N., Devine, A., Knight, B., & Machado, L. (2005, December). Distractor inhibition during response planning. Poster session presented at the Motor Control and Cognitive Neuroscience Conference, Dunedin, New Zealand.
Devine, A., & Machado, L. (2005, December). Mechanisms of action control. Poster session presented at the Motor Control and Cognitive Neuroscience Conference, Dunedin, New Zealand.
2004
Journal - Research Article
Machado, L., & Franz, E. (2004). Effects of unilateral distractors: A comparison of eye movement and key press responses. Quarterly Journal of Experimental Psychology Section A, 57(7), 1173-1190.
Machado, L., & Rafal, R. D. (2004). Inhibition of return generated by voluntary saccades is independent of attentional momentum. Quarterly Journal of Experimental Psychology Section A, 57A(5), 789-796.
Machado, L., & Rafal, R. D. (2004). Control of fixation and saccades in humans with chronic lesions of oculomotor cortex. Neuropsychology, 18(1), 115-123.
Machado, L., & Rafal, R. D. (2004). Control of fixation and saccades during an anti-saccade task: An investigation in humans with chronic lesions of oculomotor cortex. Experimental Brain Research, 156, 55-63.
Rafal, R., McGrath, M., Machado, L., & Hindle, J. (2004). Effects of lesions of the human posterior thalamus on ocular fixation during voluntary and visually triggered saccades. Journal of Neurology, Neurosurgery & Psychiatry, 75, 1602-1606.
Conference Contribution - Published proceedings: Abstract
Machado, L. (2004). Does the brain utilise similar inhibitory mechanisms for controlling visual search and actions? Australian Journal of Psychology. 56(S1), (pp. 124). doi: 10.1111/j.1742-9536.2004.tb01897.x
2002
Journal - Research Article
Rafal, R., Danziger, S., Grossi, G., Machado, L., & Ward, R. (2002). Visual detection is gated by attending for action: Evidence from hemispatial neglect. PNAS, 99(25), 16371-16375. doi: 10.1073/pnas.252309099
Ro, T., Machado, L., Kanwisher, N., & Rafal, R. D. (2002). Covert orienting to the locations of targets and distractors: Effects on response channel activation in a flanker task. Quarterly Journal of Experimental Psychology Section A, 55A(3), 917-936.
Muller, N. G., Machado, L., & Knight, R. T. (2002). Contributions of subregions of the prefrontal cortex to working memory: Evidence from brain lesions in humans. Journal of Cognitive Neuroscience, 14(5), 673-686. doi: 10.1162/08989290260138582
Dodds, C., Machado, L., Rafal, R., & Ro, T. (2002). A temporal/nasal asymmetry for blindsight in a localisation task: Evidence for extrageniculate mediation. NeuroReport, 13(5), 655-658.
Conference Contribution - Published proceedings: Abstract
Rafal, R. D., Lauder, J., & Machado, L. J. (2002). Facilitation of voluntary saccades by 1Hz rTMS of the frontal eye field. Proceedings of the Society for Neuroscience Annual Meeting. Washington, DC: SfN. Retrieved from http://web.sfn.org/content/Publications/AnnualMeeting/index.html
Rafal, R., McGrath, M., & Machado, L. (2002). Effect of thalamic lesions on eye movements in humans. Journal of Cognitive Neuroscience. A8(Suppl. S). Retrieved from http://um102.isiknowledge.com/uml/uml_view.cgi
Mari-Beffa, P., Hayes, A., Machado, L., Sheppard, D., Rafal, R., & Hindle, J. V. (2002). Lack of inhibition in Parkinson′s disease: Evidence from decreased negative priming in a lexical decision task. Journal of Cognitive Neuroscience. D7(Suppl. S). Retrieved from http://um102.isiknowledge.com/uml/uml_view.cgi
Dodds, C., Machado, L., Rafal, R., & Ro, T. (2002). A temporal/nasal asymmetry for blindsight: Evidence for extrageniculate mediation. Journal of Vision. 2(7), (pp. 23a). Retrieved from http://journalofvision.org/2/7/23/
2000
Chapter in Book - Research
Rafal, R., Machado, L., Ro, T., & Ingle, H. (2000). Looking forward to looking: Saccade preparation and control of the visual grasp reflex. In S. Monsell & J. Driver (Eds.), Control of cognitive processes: Attention and performance XVIII. (pp. 155-173). Cambridge, MA, USA: MIT Press.
Journal - Research Article
Suwazono, S., Machado, L., & Knight, R. T. (2000). Predictive value of novel stimuli modifies visual event-related potentials and behavior. Clinical Neurophysiology, 111, 29-39.
Machado, L., & Rafal, R. (2000). Control of eye movement reflexes. Experimental Brain Research, 135, 73-80.
Machado, L., & Rafal, R. D. (2000). Strategic control over saccadic eye movements: Studies of the fixation offset effect. Perception & Psychophysics, 62(6), 1236-1242.
Conference Contribution - Published proceedings: Abstract
Machado, L., & Rafal, R. (2000). Control of eye movement reflexes. Journal of Cognitive Neuroscience. (Suppl. S), 106C. Retrieved from http://uml102.isiknowledge.com/uml/uml_view.cgi