New publication on executive control in non-fluent aphasia!
Kendrick, L. T., Robson, H., & Meteyard, L. (2019). Executive control in frontal lesion aphasia: Does verbal load matter?. Neuropsychologia, 107178.
The first publication from Dr. Luke Kendrick's PhD studies with myself and Dr. Holly Robson at the University of Reading. Luke investigated performance on verbal and low-verbal executive control tasks in aphasia. He found that the verbal load of executive control tasks did not consistently influence performance in aphasia, and that participants with aphasia showed a generalised cognitive slowing compared to controls. Generalised cognitive slowing occurred for both baseline and executively demanding tasks, and accuracy performance was impaired in aphasia for tasks of switching and updating of working memory, but not inhibition. This suggests that for people with aphasia, more complex tasks that have multiple demands are most prone to impairment - once tasks are carefully controlled for confounds, it is not the case that all aspects of executive control are impaired for PWA.
Preprint of a best practice paper on mixed models analysis
Meteyard, L., & Davies, R. (2019, March 11). Best practice guidance for linear mixed-effects models in psychological science. https://doi.org/10.31234/osf.io/h3duq
Preprint can be downloaded here
The manuscript has been submitted and is under review.
The use of Linear Mixed Effects Models (LMMs) is set to dominate statistical analyses in the psychological and behavioural sciences. The rapid growth in adoption of LMMs has been matched by a proliferation of differences in practice. This paper examines the diversity in modeling practice by two methods – a survey of researchers (n=163) and a quasi-systematic review of papers using LMMs (n=400). The survey reveals substantive concerns among psychologists using or planning to use LMMs and an absence of agreed standards. The review of papers complement the survey, showing variation in how the models are built, how effects are evaluated and, most worryingly, how models are reported. Using this data as our departure point, we present a set of best practice guidance for reporting LMMS.
Preprint of review paper on aphasia rehabilitation
A position paper in which we review current approaches to functional communication / real-life language use in aphasia, and call for a change in how we approach this critical part of assessment and rehabilitation for people with aphasia.
The first part of the paper (review of measures of functional communication) is now under review.
PhD & Project Supervision
If you are interested in pursuing a dissertation project or PhD with me or any of the Lab PIs, please get in touch. I am interested in supervising projects in any area of my research interests and in supporting Speech Therapists to complete projects as part of their ongoing clinical practice.
Current doctoral students
Willemijn Doedens - Working title: Functional communication in Aphasia. Co-supervision with Dr. Arpita Bose.
Mariam Alorifan - Working title: The interaction between semantic and articulatory processes in speech production. Co-supervision with Dr. Arpita Bose.
Previous doctoral students
Dr. Madhawi Altaib - 'The feasibility of Using Telepractice Delivery Method to Assess People with Aphasia in Gulf Arabic Countries (Saudi Arabia and Kuwait)'. Awarded 2019. Co-supervision with Prof. Theo Marinis
Dr. Luke Kendrick - 'Beyond language: Executive control and learning abilities in non-fluent aphasia'. Awarded 2019. Co-supervision with Dr. Holly Robson.
Dr. Catherine Godbold - 'Non-word errors in jargon aphasia: Exploring the underlying mechanisms'. Awarded 2016. Co-supervision with Dr. Arpita Bose.
Dr. Mohammad Alameer - 'Anxiety and motor speech treatments of stammering'. Awarded 2015. Co-supervision with Dr. David Ward.