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Derek Arnold

@visnerd.bsky.social
446 followers 173 following 115 posts

Vision Scientist, Aphant

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Reposted by Derek Arnold
Sam Schwarzkopf @sampendu.bsky.social · 16/09/2026
Happy to see @genetang.bsky.social's review article on Charles Bonnet Syndrom now available as early-online in Brain! #VisionScience #neuroskyence #PsychSciSky doi.org/10.1093/brai...
doi.org
The neural mechanisms of Charles Bonnet syndrome
Charles Bonnet syndrome is characterised by visual hallucinations that cannot be explained by any other cause in individuals with visual impairment. Tangta
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Derek Arnold @visnerd.bsky.social · 12/09/2026
This is our summary of where we think the field of Aphantasia research stands. Congenital aphantasia: what we (think we) know, what we thought we knew but were mistaken about, and what we don't know. www.sciencedirect.com/science/arti...
sciencedirect.com
Congenital aphantasia: what we (think we) know, what we thought we knew but were mistaken about, and what we don't know
Congenital Aphantasia initially described a lifelong inability to visualise. But it is now understood to manifest as imaginative inabilities that can …
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Icelandic Vision Lab @icevislab.bsky.social · 10/09/2026
🚨Paper alert🚨 Here we try to tackle the tricky problem of measuring the inherently private experiences of visual imagery. Now out and open access in Cortex: doi.org/10.1016/j.co... @heidasigurdar.bsky.social @arnig.bsky.social #imagery #visualimagery #visionscience #psychology #cogsci #aphantasia
doi.org
Redirecting
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Derek Arnold @visnerd.bsky.social · 08/09/2026
A recent paper argued that there is no visual binding problem. I disagree, and wrote a response... journals.sagepub.com/doi/10.1177/... Related demonstrations can be found here... staff.psy.uq.edu.au/~uqdarnol/JS...
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Derek Arnold @visnerd.bsky.social · 15/07/2026
Our latest article published in Scientific Reports examines the multisensory profile of dreams and waking imagined sensations in Aphantasia. We found a varied correspondence between dreamt and waking imagined experiences, suggesting a neurological diversity. www.nature.com/articles/s41...
nature.com
Heterogeneous relationships between the multisensory content of aphantasics’ dreams and their volitional waking imagined experiences - Scientific Reports
Scientific Reports - Heterogeneous relationships between the multisensory content of aphantasics’ dreams and their volitional waking imagined experiences
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Australasian Society for Experimental Psychology @expsyanz.bsky.social · 22/06/2026
Join us on 1 July, 12:00–3:15 PM, for the Synaesthesia Science & Community Forum. Explore the latest research in consciousness, sensory neuroscience, auditory cognition, and phenomenology through talks and discussion. See here for more details: visualneuroscience.auckland.ac.nz/epc-apcv-2026/
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William Ngiam | 严祥全 @williamngiam.github.io · 22/06/2026
I adapted a scheduler app that was shared at VSS for this conference: apcvepc2026.netlify.app. Hope others find it useful in organising their time. (And thank you to Miyoung Kwon who created the app originally).
apcvepc2026.netlify.app
APCV / EPC 2026 Scheduler
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Derek Arnold @visnerd.bsky.social · 23/06/2026
Nice to see this paper out. It shows that suggested links between Aphantasia and Autism have been overstated. But people with Autism on average report muted imagined sensations, and there is a weak link to Multisensory (but not visual) Aphantasia. www.sciencedirect.com/science/arti...
sciencedirect.com
Autism and Aphantasia
Aphantasia is characterised by an inability to have volitional imagined sensations. While initially characterised as an inability to visualise, Aphant…
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juhasilvanto.bsky.social @juhasilvanto.bsky.social · 16/05/2026
Cardiac vagal reactivity predicts visual imagery vividness. This challenges traditional efferent accounts in which autonomic activation is merely a byproduct of imagery; rather, autonomic afferent input shapes visual imagery itself www.biorxiv.org/content/10.6...
biorxiv.org
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Australasian Society for Experimental Psychology @expsyanz.bsky.social · 12/05/2026
Final days for Early Bird registration! Register now and take advantage of discounted pricing.
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Sam Schwarzkopf @sampendu.bsky.social · 14/05/2026
All speakers should have received information about the session & timings of their presentations at #epc-apcv-2026 by now! A preliminary (searchable) schedule is available on the website: visualneuroscience.auckland.ac.nz/epc-apcv-2026 Remember to register by the end of 15 May for early-bird rates!
visualneuroscience.auckland.ac.nz
EPC & APCV 2026
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Mark Greenlee @greenlee-markw.bsky.social · 13/05/2026
Going to #VSS2026 this year? This mobile app organizes your schedule — 1,190 presentations searchable by title, author, abstract, day, etc. Export to Google or Apple Calendar. Works on iPhone and Android via the free Expo Go app. Just scan the QR code in the README: github.com/markwgreenle...
github.com
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Nadine Dijkstra @nadinedijkstra.bsky.social · 13/05/2026
Researching visual imagery? Consider submitting to this new cross-journal special issue on visual imagery at Nature Communications, Communications Psychology, and Scientific Reports! We welcome a broad range of topics and methods - more info below 👇 www.nature.com/collections/...
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Derek Arnold @visnerd.bsky.social · 13/05/2026
I’m doing this again next week. Pint of Science pintofscience.com.au/event/mind-t...
pintofscience.com.au
Minds in Motion
Shake up your Tuesday night.<br /> <br /> Pint of Science brings researchers into the pub to explore how our minds work, differ and change. From the way people experie…
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Mike Le Pelley @mikelepelley.bsky.social · 15/04/2026
We're hiring! Looking for a postdoc to work at UNSW Sydney, studying impacts of reward and information on attention, using eye-tracking, EEG, and modelling - with Kelly Garner, Daniel Pearson and me. Application link below, please spread the word! external-careers.jobs.unsw.edu.au/cw/en/job/53...
external-careers.jobs.unsw.edu.au
Research Associate - Psychology
The Research Associate (Level A) is expected to contribute towards the research effort of UNSW and to develop their research expertise through the pursuit of defined projects relevant to their particu...
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Kate Storrs @katestorrs.bsky.social · 15/04/2026
We have over 100 abstracts submitted already and are expecting a big spike in these last couple of weeks! EPC/APCV are very rarely in NZ (last was 15yrs ago). If you're kiwi, this is a great opportunity for a nearby international conference. If you're not, this is your chance to see beautiful NZ :)
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Rodrigo Braga @rodbraga.bsky.social · 31/03/2026
Our new paper on brain networks engaged during imagining is out now in Neuron! Here is a download link (free for 50 days): authors.elsevier.com/c/1msNE3BtfH... Congratulations to Nate Anderson for leading this work @rementurus.bsky.social 🧵
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Sam Schwarzkopf @sampendu.bsky.social · 27/03/2026
Happy to report that our survey study on the diversity with which people seem to experience their mental imagery is now published in RSOS :) doi.org/10.1098/rsos... I posted a longer thread summarising the findings some months ago when we first put out the preprint: bsky.app/profile/samp...
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Jianghao Liu @jianghaoliu.bsky.social · 23/03/2026
🔊 New preprint 🧠 for the first time we show congenital #aphantasia has physical brain anatomy alterations. Surprisingly, they have structurally intact #visual pathways. Structural alterations instead found in the fronto-temporal and cingulate systems. www.biorxiv.org/content/10.6... 🧵
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Imaging Neuroscience @imagingneurosci.bsky.social · 22/03/2026
New paper in Imaging Neuroscience by Hamid Karimi-Rouzbahani, Anina N. Rich, and Alexandra Woolgar: Spatiotemporal characterisation of information coding in the multiple demand network doi.org/10.1162/IMAG...
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Australasian Society for Experimental Psychology @expsyanz.bsky.social · 19/03/2026
Meet our second keynote speaker for APCV & EPC 2026! Prof. Elaine Reese from the University of Otago will deliver a keynote lecture titled "Memory Development: From Basic Science to Applied Approaches."
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Dan Feuerriegel @danfeuerriegel.bsky.social · 19/03/2026
Our paper on double decisions in working memory tasks is now published in Computational Brain and Behaviour! When you give people a second chance, it reveals a lot about the contents of their memory. Led by @paulmgarrett.bsky.social @psychunimelb.bsky.social rdcu.be/e8SLX
rdcu.be
Double-decision Response Time Models of Recall and Recognition Support Resource Accounts of Visual Working Memory
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Pascal Mamassian @mamassian.bsky.social · 16/03/2026
Congratulations to Ian Thornton and colleagues who published their Mainz-Linez illusion in i-Perception (@pec-ipe.bsky.social): the red dots appears to wave left and right when one looks at one of the black dots, but they actually move straight journals.sagepub.com/doi/10.1177/...
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Australasian Society for Experimental Psychology @expsyanz.bsky.social · 15/03/2026
Next up: Keynote Speaker Announcements. Introducing the first speaker for APCV & EPC 2026! Prof. Hakwan Lau will present a keynote lecture titled "Prefrontal Mechanisms for Perception."
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Australasian Society for Experimental Psychology @expsyanz.bsky.social · 09/03/2026
⚡SYMPOSIA SPOTLIGHT #2 More symposia highlights from our upcoming conference!
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Dr Reshanne Reeder @kerblooee.bsky.social · 10/03/2026
Please repost! I have a wonderful colleague seeking a postdoc with expertise in *Bayesian Network Analysis* Position for 1 year in Liverpool, starting as early as next month (April)! Informal EOIs to Angelika Stefan: astefan1.github.io
astefan1.github.io
| Angelika Stefan
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The vOICe vision BCI 🧠🇪🇺 @seeingwithsound.bsky.social · 10/03/2026
#Aphantasia and visual working memory: No direct evidence of impaired visual working memory in aphantasics, either in behavioral performance or the accuracy of a multivoxel pattern classifier www.sciencedirect.com/science/arti...
sciencedirect.com
Aphantasia and visual working memory: No direct evidence of impaired visual working memory in aphantasics, either in behavioral performance or the accuracy of a multivoxel pattern classifier
Visual mental imagery and visual working memory are often thought to be closely related. After all, both have been argued to involve the temporary mai…
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Australasian Society for Experimental Psychology @expsyanz.bsky.social · 04/03/2026
⚡SYMPOSIA SPOTLIGHT #1 We are super excited to announce a series of symposia taking place throughout our conference. Here is a preview of some featured sessions and speakers. Of course, there is more to come. Stay tuned!
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Tom Wallis @tsawallis.bsky.social · 23/02/2026
**Postdoc position in human category learning** @thecharleywu.bsky.social, Frank Jäkel and I are seeking a postdoctoral fellow to lead a joint project on human category learning at the Centre for Cognitive Science @tuda.bsky.social. www.career.tu-darmstadt.de/tu-darmstadt...
career.tu-darmstadt.de
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Jan Skerswetat @janskerswetat.bsky.social · 18/02/2026
Everyone: Binocular rivalry describes an alternation between exclusive percepts from each eye. Me + Prof Bex: Which perceptual categories do observers experience during multistable perception? url: royalsocietypublishing.org/rspb/article...
royalsocietypublishing.org
Which perceptual categories do observers experience during multistable perception?
Abstract. Multistable perceptual phenomena provide insights into the mind’s dynamic states within a stable external environment, and the neural underpinnin
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Imaging Neuroscience @imagingneurosci.bsky.social · 23/02/2026
New paper in Imaging Neuroscience by Melinda Sabo, Tijl Grootswagers, et al: Multiple partially overlapping neural modules orchestrate conflict processing doi.org/10.1162/IMAG...
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David Barner @drbarner.bsky.social · 19/02/2026
Bots have made their way to Prolific experiments. Our lab has stopped online testing of adults entirely now for this reason - we want to know if what we study is real. Probably data collected 2-3 years ago are ok, but moving forward we just can't know. www.pnas.org/doi/10.1073/...
pnas.org
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
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Tom Wallis @tsawallis.bsky.social · 17/12/2025
Legit super excited about this work coming out. My amazing doctoral student @ben.graphics has been working on an idea to use physically based differentiable rendering (PBDR) to probe visual understanding. Here, we generate physically-grounded metamers for vision models. 1/4 arxiv.org/abs/2512.12307
A teaser figure showing the process of metamers rendered differentially (MRD). Target scene parameters are used to render a target scene. A new scene is initialized from some starting point, and renders are created from this scene. The loss between the initial and target scenes is measured. MRD allows the gradients wrt the loss to be propagated to the scene parameters (e.g. lighting, geometry or material) for gradient-based optimization.
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Australasian Society for Experimental Psychology @expsyanz.bsky.social · 12/02/2026
Coming to APCV & EPC from outside of Auckland, New Zealand? Here is some more information about Student Travel Awards. More available on our website: visualneuroscience.auckland.ac.nz/epc-apcv-2026/
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Will Harrison @willjharrison.bsky.social · 10/02/2026
Anyone want to do a PhD with me at the Sunny Coast? I'm recruiting, and I wanna do some fun psychophysics (but the possibilities for the PhD are very broad). Domestic students only, sadly. In case y'all happen to know someone: @nataliepeluso.com @reubenrideaux.bsky.social @visnerd.bsky.social
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Kate Storrs @katestorrs.bsky.social · 09/02/2026
Our latest paper, “Visual language models show widespread visual deficits on neuropsychological tests”, is now out in Nature Machine Intelligence: www.nature.com/articles/s42... Non-paywalled version: arxiv.org/abs/2504.10786 Tweet thread below from first author @genetang.bsky.social...
nature.com
Visual language models show widespread visual deficits on neuropsychological tests - Nature Machine Intelligence
Tangtartharakul and Storrs use standardized neuropsychological tests to compare human visual abilities with those of visual language models (VLMs). They report that while VLMs excel in high-level obje...
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Derek Arnold @visnerd.bsky.social · 04/02/2026
New Paper: Pupillary responses are not a reliable index of differences in imagery vividness. Our search for more reliable metrics of imagery continues... www.sciencedirect.com/science/arti...
sciencedirect.com
Imagery modulates the pupillary response, but this does not reliably index differences in imagery vividness.
Most people report that they can imagine seeing things in their mind’s eye. But there are large individual differences. A small proportion of people r…
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Derek Arnold @visnerd.bsky.social · 20/12/2025
New Preprint: People in general have idiosyncratic imagined experiences characterised by salience differences. Some have more salient imagined sensations of smell than of imagery, while most have the opposite - and these differences shape people's daily lives. www.biorxiv.org/content/10.6...
biorxiv.org
People report having consistent idiosyncratic ‘diets’ of imagined sensations when they re-experience the past, and pre-experience the future
To some extent, humans can re-experience the sensations of past events and pre-experience the future. These capacities are inter-related. But there are substantial individual differences. At the extre...
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Mike Le Pelley @mikelepelley.bsky.social · 22/10/2025
New paper with Tom Whitford, using EEG to investigate inner speech in people with auditory verbal hallucinations in schizophrenia. academic.oup.com/schizophreni...
academic.oup.com
Corollary Discharge Dysfunction to Inner Speech and its Relationship to Auditory Verbal Hallucinations in Patients with Schizophrenia Spectrum Disorders
AbstractBackground and Hypothesis. Auditory-verbal hallucinations (AVH)—the experience of hearing voices in the absence of auditory stimulation—are a cardi
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Sam Schwarzkopf @sampendu.bsky.social · 20/10/2025
SAVE THE DATE! Australasian Society for Experimental Psychology (EPC) & Asia-Pacific Conference on Vision (APCV) Joint Meeting from 1-4 July at the University of Auckland, NZ. #PsychSciSky #VisionScience #neuroskyence More information to follow! visualneuroscience.auckland.ac.nz/epc-apcv-2026/
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Derek Arnold @visnerd.bsky.social · 18/07/2025
New Publication: Mental rotation is a weak measure of people’s propensity to visualise This was a fun project : ) Turns out that the main task used to measure the capacity of people to visualize for many decades isn't really fit for that purpose! authors.elsevier.com/a/1lS9S_NzVj...
authors.elsevier.com
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Derek Arnold @visnerd.bsky.social · 04/02/2025
New Paper: The vividness of visualisations & autistic trait expression are not strongly associated Our evidence suggests Autism / Aphantasia links have been overstated by a circular logic (as the most popular Autistic trait measure has questions about imagery). authors.elsevier.com/c/1kYhW3lcz4...
authors.elsevier.com
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Derek Arnold @visnerd.bsky.social · 19/12/2024
New Paper: Objective priming from pre-imagining inputs before binocular rivalry does not predict individual differences in the subjective intensity of imagined experiences We think imagery binocular rivalry priming is an unreliable subjective measure of imagery authors.elsevier.com/sd/article/S...
authors.elsevier.com
ScienceDirect.com | Science, health and medical journals, full text articles and books.
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Derek Arnold @visnerd.bsky.social · 08/12/2024
New Paper: Don't think of a pink elephant: Individual differences in visualisation predict involuntary imagery and its neural correlates People with vivid visual imaginations are less able to suppress involuntary visualisations. doi.org/10.1016/j.co... #Aphantasia #Imagery
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Derek Arnold @visnerd.bsky.social · 28/11/2024
A report on our New Study: Don’t think of a Pink Elephant! Aphants, and people with low vividness imagery, may be resistant to intrusive visualisations! #Aphantasia #Imagery @sampendu.bsky.social theconversation.com/the-pink-ele...
theconversation.com
The pink elephant test: what your visual imagination predicts about your ability to control your thoughts
Research shows people with more vivid visual imaginations may also be more prone to certain kinds of intrusive thoughts.
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Mel Goodale @action-brain.bsky.social · 25/11/2024
I feel so honored by the publication of this special issue of Neuropsychologia. Thanks so much to my friends and colleagues who put this together. And thanks to all the contributors. There are so many wonderful articles. I can't tell you how delighted I am. 🧪🧠 www.sciencedirect.com/science/arti...
The title page of the special issue, which reads "Introduction to the special issue on visual cognition and visuomotor control: A tribute to Mel Goodale" The authors of the Intro are: Jody C. Culham, Gavin Buckingham, Monika Harvey, Irene Sperandio, Ingrid S. Johnsrude
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Tijl Grootswagers @tgro.bsky.social · 22/11/2024
New preprint! Work led by Alexis Kidder (@lexkidder.bsky.social) during a visiting scholarship at @marcsinstitute.bsky.social with @drquekles.bsky.social & @tgro.bsky.social "Mapping object space dimensions: new insights from temporal dynamics" 🔗 doi.org/10.1101/2024... 1/ Summary: 🧵👇
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Australasian Society for Experimental Psychology @expsyanz.bsky.social · 08/11/2024
We are excited to announce that Professor Ben Newell will be giving the Ross Day Plenary at EPC/APCV 2025. Ben Newell is Professor of Behavioural Science in the School of Psychology at UNSW Sydney, and Director of the UNSW Institute for Climate Risk & Response (ICRR).
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Dr James Dunn @jamesdunn.bsky.social · 19/11/2024
🚀 New Research! 🚀 🔍 Title: Flexible Use of Facial Features Supports Face Identity Processing Our study reveals that the key to accurate face recognition lies in the flexibility of using different facial features. #Research #FaceRecognition #Psychology #Forensics #Security #AcademicResearch
growkudos.com
What makes some people better at recognising faces?
Recognising faces is crucial to social interactions, and also in applied settings such as criminal investigations. Research has shown that there are widespread differences in people’s ability to recog...
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Australasian Society for Experimental Psychology @expsyanz.bsky.social · 08/11/2024
The Australasian Experimental Psychology Conference (EPC) and Asia Pacific Conference on Vision (APCV) are holding a joint meeting in 2025, to be held at UNSW in Sydney, from June 17-20. Abstract and symposium submissions are open! epc.psy.unsw.edu.au/index.html
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