Summer Project Update

Easter term has seen Alexis making excellent progress with the PSP project. We are now well on course to hit our target of 27 people in the PSP group and can turn our thoughts to recruiting some age matched controls. Dan also presented some preliminary data from the visual search task at the PSP Association Research Information Day on 23rd of May.  His talk and many other fascinating presentations can be found on the PSPA webpage: Research Information Events – PSPA (pspassociation.org.uk). We also submitted an application to the Ulverscroft Foundation for a PhD project that (if we’re successful) will follow up our pilot project that explored the experiences of people with PSP when using prism glasses.

There was some good news for Soazig, who had a paper on the effect of labelling on aesthetic appreciation and gaze behaviour accepted in a special issue of Journal of Vision. It was also exciting to start a new project with Prof Andy Beresford from MLAC and the Bowes Museum which uses mobile eye tracking to help evaluate visitors’ experiences of the 2nd floor galleries of the Museum. Two of our psych graduates (Lucy Edgar and Catherine Guo) have temporarily joined us to run the project, which will take place over the next month and will be complemented by a lab-based study run by Flora Loh.

Lucy, Catherine, Soazig & Andy at the Bowes Museum ready to begin the eye-tracking study

Xueqing has completed the first experiments of her PhD project exploring perceptual expertise in table-tennis players. As predicited, experts were better at predicting the landing position of a table-tennis shot, particularly at early occlusion intervals. However, this advantage depends on the stroke type, and, rather surprisingly,  experts were much slower at responding than novice players. Having aced her progression viva, Xueqing is now heading off to China to recruit a large sample of elite table-tennis players to follow this finding up in a larger sample.

We are now looking forward to summer conference season. Xueqing has already presented her first experiment at the RIO group meeting in Liverpool and Dan and Soazig will be going to the Experimental Psychology Society meeting in York. Dan will present some new data on how presaccadic attention and memory based attention interact during actions, and Soazig will describe the preliminary findings of a TMS study that examines the effect of FEF neurostimulation on premotor attention shifts. Later in the summer Soazig will present at the Visual Science of Art Conference (VSAC) and European Conference on Visual Perception (ECVP) in Aberdeen. Alexis will also be at ECVP, having been invited to contribute to a symposium on “Perception, Cognition and Action in Neuropsychological Patients: Bridging Science and Practice” organised by Jutta Billino & Jennifer Randerath. It is going to be a busy summer!

New Year Update 2024: Recruitment boost, Siobhan’s graduation and a new paper!

Maria and Dan at the Durham PSPA meeting at the Bay Horse

The last couple of months have seen significant progress with the PSP project and some important milestones for Siobhan’s PhD. We’ve been delighted to have seen a big increase in people volunteering for the PSP project, and I’m pleased to say we are now at 20 participants, which means we are slightly ahead of schedule. We’re particularly grateful to the wonderful research nurses in James Cook, Gateshead and Sunderland for their efforts to recruit people, and to the local PSPA co-ordinators who have helped publicise the study. We still need people to take part, especially for our age matched control group, so please get in touch if you are interested. We also had a very nice meeting with Maria from the County Durham PSPA, who let Alexis and I update the group on progress with the project and pitch some ideas for new research projects. They gave us quite a grilling, but the feedback was extremely valuable!

Siobhan at the graduating with her PhD at the winter congregation in Durham cathedral

It was also lovely to catch up with Siobhan, who returned to Durham to graduate her PhD at Durham Cathedral. It was a very proud day! There was more good news from Siobhan, as the 3rd paper from her PhD was accepted and appeared in Vision Research on the last day of the year. The paper shows that measuring VSWM capacity with mouse pointing produces a rather different pattern of resource allocation than measuring with finger pointing (imprecision asymptotes at set sizes larger than 2, rather than monotonically increasing), we think because of the additional visuomotor transformations required by mouse pointing. You can read all about it here: Precision in spatial working memory examined with mouse pointing – ScienceDirect

Autumn Update: FESN 2023, new paper published

It has been a busy summer for the MotorBias project with lots of progress on several projects. Alexis’ main focus has been the Dunhill Medical Trust project on Attention and Memory in PSP and Parkinsons’ disease, which reached a notable milestone when we reached our recruitment target of 27 for the Parkinsons group. This excellent achievement is thanks due to the fantastic efforts of Susan Wilson at Sunderland Royal and Bryony Storey at Gateshead who have provided us with a steady stream of willing volunteers, and of course the participants themselves whose time and effort we are very grateful for!  Dan has also been busy with the PSP project, running very some very informative PPI sessions with Susan at Sunderland Royal to get feedback on the potential for a project exploring prism use in PSP.

Another highlight of the summer  was the Federation of European Neuropsychology Societies 2023, where we were  fortunate to be joined by Prof Chrystalina Antonaides and Dr Luca Wollenberg in the city of Thessalonki  for a symposium on “Visual cognition and oculomotor control in neurodegenerative disease” organized by Dan and Thomas.  Alexis presented a preliminary analysis of the visual search tasks, reporting that people with PSP find visual searh significantly more challenging than people with Parkinsons’ disease. Chrystalina outlined her recent advances in using measures of oculomotor control to track progression of Parkinson’s disease and Luca who explained his exciting research showing decoupling of attention and saccades after training. Although unfortunately Prof Trevor Crawford wasn’t able to join as planned, the symposium produced lively discussion in the session and at the symposium dinner afterwards. We’re very hopeful that some the seeds of ideas planted over dinner and well watered with Greek beer will grow into future collaborations!

Overall the conference was very good with some some thought provoking keynotes. Alfredo Spagna gave a particularly compelling talk arguing against a functional role for V1 in mental imagery. Unfortunately the poster sessions were a great disappointment. Posters were electronic, but with only three display screens it was impossible to browse the posters at leisure, which is one of the great pleasures of a conference. It also severely limited the time Dan had to present the results of the VSWM and social cognition tasks, which was very frustrating. You can see the poster at the bottom of this page.

Other notable events during the summer included Siobhan getting a new job with Dr Robert Hardwick in Leuven, Belgium, a new publication from in PLOSONE in which Dan demonstrated the existence of a presaccadic perceptual impairment at the post-saccadic location of the blindspot (Smith Beierholm & Avery 2023), Shuzhe completing her masters project looking at the effect of varying cue spatial frequency on the temporal profile of exogenous attention, and Soazig submitting a paper on eye-movements and aesthetic appreciation to JoV. With the start of term imminent we’re looking forward to welcoming a our new cohort of UG and masters students and getting on with more exciting projects.

Use of Prism Glasses in PSP questionnaire now live!

Coronavirus has meant many of our projects have ground to a halt, but in spite of the disruption we’ve been pressing on by moving some research online. Something we’re delighted to be making progress with is Dan Ford and James Ireland’s MSc project, which explores the use of prism glasses by people with Progressive Supranuclear Palsy (PSP). People with PSP often have problems looking downwards, which makes it hard for them to see what is happening in the lower visual field. Many everyday tasks like eating, reading and using a computer rely on being able to look down into the lower part of the visual field, which makes them very difficult for people with PSP. Prism glasses bend the light so that that the lower visual field can be seen without having to move the eyes. They are cheap and easy to use, so appear to have great potential as a compensatory tool. They are widely used to treat other neurological disorders which affect vision, such has hemispatial neglect and hemianopia.

However, prisms do have some disadvantages. For example, they can be heavy and it takes time to get used to the way they change how the world looks. Furthermore, nobody really knows how useful they are or how widely used they are because nobody has asked people with PSP. Dan and James’s project aims to start answering this important issue by surveying people with PSP about their attitudes towards, and experiences of, using prism glasses. It’s one of the first surveys of its kind and we’re hoping that the results will help us better understand how people use prisms, whether they find them useful, and/or the problems or impediments that people experience when using prism glasses. If you have PSP and would like to take part the questionnaire can be found here:

https://durhampsychology.eu.qualtrics.com/jfe/form/SV_eqxcolUWzqVSPjv

Dan and James are being supervised by Dr Alison Lane and the project is a collaboration with the PSP Association.  You can find out more about Dr Ali Lane’s research on neurorehabilitation on her homepage.

If you are interested, some of our related research can be found here:

 

 

RIO Group conference report

Last week Soazig and I had a very enjoyable couple of days at the annual RIO (Research in Imagery & Observation) group meeting held at Teesside University. Now, imagery isn’t our usual sort of thing, but the chance to attend a free conference in our own backyard seemed to good to miss. On day 1 we saw some fascinating presentations from students in Shaun Boe’s lab who had travelled all the way from Dalhousie in Canada. The first thing to note  is that most of the contemporary research was focused on AOMI (which everyone pronounced AY-OH-ME, much to Soazigs irritation). AOMI involves action observation (i.e. watching an expert do the task) while simultaneously engaging in mental imagery (imagining performing the action). The key message I took from these talks was that although it was generally agreed that mental imagery was jolly helpful for improving skills, there was no real agreement about either the optimal ‘dosage’ or at what point during skill acquisition AOMI was most effective. Boe’s group showed some pretty nice evidence that AOMI was most effective during skill acquisition; the ‘cognitive’ and ‘associative’ phases in Fitts & Posner (1967) model of expertise. In a particularly interesting finding, Sarah Kraeutner argued that imagery could reduce endpoint variability without necessarily improving overall accuracy in a dart throwing task. However, a number of audience members commented that although the dart-throwing paradigm is a classic task, it has problems as a model of skill acquisition, particularly with respect to controlling prior experience of the task. Also in this session was a fascinating talk from Jack Binks on using imagery to rehabilitate motor skills after stoke. Richard Ramsay then gave an eclectic keynote covering cognitive and brain mechanisms of social perception, which I found particularly interesting with respect to our work with Geoff Cole on perspective taking and social attention.

On day 2 Soazig and I did presentations on topics that, to be fair, were a bit tangentially related to mental imagery. Soazig presented our preliminary data on the effects of TMS over FEF on presaccadic and premotor shifts of attention. The cool result here is that the neurostimulation disrupts presaccadic attention but has no effect on the pre-reaching shift of attention. I presented some neuropsychological  demonstrating that patients with Progressive Supranuclear Palsy have a deficit of VSWM that maps onto their oculomotor paralysis (see Smith & Archibald 2019). I argued this research had more direct relevance for mental imagery, as there is evidence that making eye-movements can interfere with the generation of visual imagery (e.g. Andrade, Kavanagh & Baddeley 1997), followed by a cheeky plug for our own workshop in July. I discussed the overlap between eye-movements, imagery and attention at some length with Dan Eaves (Teesside), and we were both struck by the fact that there are motor theories of attention, such as Kleins Oculomotor Readiness Hypothesis (OMRH) & Rizzolatti’s Premotor Theory (PMT), and motor theories of mental imagery such as Jeannerods Motor Simulation Theory. However, there seems to be little effort to reconcile or integrate these views, and we agreed this could be an area that is ripe for further study.  The day 2 keynote was given by Robert Hardwick (KU Leuven), who presented a fascinating meta-analysis of studies examining imagery, action observation and action execution, and finished with an appeal to develop more theoretically principled models of mental imagery. Again, I was struck by the parallels between the dominance of Simulation Theory in the motor imagery literature and that of OMRH/PMT in the literature on spatial attention, and the need to develop beyond these ideas. There was also time for a bit of light schmoozing around the posters, and I was delighted to talk briefly with Zoe Franklin about TMS and eyetracking, Elaine Poliakoff about her work on imagery in Parkinsons Disease, Shaun Boe about his ideas on the neural and cognitive mechanisms underpinned AOMI, Gabriel Valadez Roque about using imagery to rehabilitate stroke patients in Mexico and Martin Edwards, with whom I mainly exchanged academic gossip 😉.

The final session was a discussion led by Stefan Vogt which touched on future directions for imagery research. Naturally I made sure I had my 2 cents worth about motor theories of attention and imagery. There was also a prize for the best student contribution, which was won by Sylvia Chiou from Bielefeld for her excellent talk “Is temporal information integrated with spatial information during action observation? Effects of visual attention on the processing of whole-body movement sequences”. After all that excitement we retired to the Dickens Inn where refreshments were taken. Hats off to Dan Eaves for chairing such a well organised and welcoming conference, particularly for AOMI neophytes like me and Soazig. I was also very impressed with the Teesside Uni campus, and the quality and affordability of the catering. I would highly recommend attending the RIO group meeting to anyone with an interest in action observation, imagery or motor learning.

If you are interested in the research we presented my slides can be found here: RIO group talk

Our Cortex paper describing a deficit of spatial working memory in PSP is open access and can be found here: https://www.sciencedirect.com/science/article/pii/S0010945218302211?via%3Dihub

Smith, D.T. & Archibald, N. (2018). Spatial Working Memory in Progressive Supranuclear Palsy. Cortex