John Greenwood
@jagreenwood.bsky.social
Vision scientist in Experimental Psychology, University College London. Foreigner. Father. Posting perception, neuroscience, music & I guess reposted memes. He/him. Lab website: http://eccentricvision.com
Reposted by John Greenwood
Please repost! I am looking for a PhD candidate in the area of Computational Cognitive Neuroscience to start in early 2026.
The position is funded as part of the Excellence Cluster "The Adaptive Mind" at @jlugiessen.bsky.social.
Please apply here until Nov 25:
www.uni-giessen.de/de/ueber-uns...
The position is funded as part of the Excellence Cluster "The Adaptive Mind" at @jlugiessen.bsky.social.
Please apply here until Nov 25:
www.uni-giessen.de/de/ueber-uns...
November 4, 2025 at 1:57 PM
Please repost! I am looking for a PhD candidate in the area of Computational Cognitive Neuroscience to start in early 2026.
The position is funded as part of the Excellence Cluster "The Adaptive Mind" at @jlugiessen.bsky.social.
Please apply here until Nov 25:
www.uni-giessen.de/de/ueber-uns...
The position is funded as part of the Excellence Cluster "The Adaptive Mind" at @jlugiessen.bsky.social.
Please apply here until Nov 25:
www.uni-giessen.de/de/ueber-uns...
Happy Fechner Day, to those who celebrate
October 22, 2025 at 2:28 PM
Happy Fechner Day, to those who celebrate
Reposted by John Greenwood
If you're a #visionscience or #psychscisky person starting to think about student dissertation projects, you might be interested in our visual search/foraging experiment code at github.com/scienceanna/.... You can configure everything via CSV files (lots of options!) and it all runs on Psychopy.
GitHub - scienceanna/visual_foraging_exp: Visual foraging experiment in PsychoPy
Visual foraging experiment in PsychoPy. Contribute to scienceanna/visual_foraging_exp development by creating an account on GitHub.
github.com
September 3, 2025 at 11:02 AM
If you're a #visionscience or #psychscisky person starting to think about student dissertation projects, you might be interested in our visual search/foraging experiment code at github.com/scienceanna/.... You can configure everything via CSV files (lots of options!) and it all runs on Psychopy.
Reposted by John Greenwood
Enjoying this 1884 paper by CS Peirce and Joseph Jastrow on whether perception exhibits a hard threshold - the idea that as stimulus intensity increases, at some value it goes from unconscious to conscious, rather than following a smooth probabilistic curve. psychclassics.yorku.ca/Peirce/small...
Classics in the History of Psychology
psychclassics.yorku.ca
August 22, 2025 at 6:53 AM
Enjoying this 1884 paper by CS Peirce and Joseph Jastrow on whether perception exhibits a hard threshold - the idea that as stimulus intensity increases, at some value it goes from unconscious to conscious, rather than following a smooth probabilistic curve. psychclassics.yorku.ca/Peirce/small...
Reposted by John Greenwood
Very happy that our study looking at complex hallucination proneness across the lifspan is new out in Cortex! @georgiamneuro.bsky.social @mlisi.bsky.social @jagreenwood.bsky.social @thelablab.bsky.social @tessamdekker.bsky.social
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Reduced susceptibility to experimentally-induced complex visual hallucinations with age
Visual hallucinations occur across many clinical conditions, but can also be induced experimentally in healthy individuals, using high-frequency flick…
www.sciencedirect.com
August 20, 2025 at 7:31 PM
Very happy that our study looking at complex hallucination proneness across the lifspan is new out in Cortex! @georgiamneuro.bsky.social @mlisi.bsky.social @jagreenwood.bsky.social @thelablab.bsky.social @tessamdekker.bsky.social
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Reposted by John Greenwood
Excited to share our new preprint...
...𝑖𝑡'𝑠 𝑎𝑏𝑜𝑢𝑡 𝑡𝑖𝑚𝑒! ⏳
We find temporal confounds in fMRI that emulate neural patterns of perceptual learning.
These can be hard to spot with conventional RSA, but may influence our understanding of how prior knowledge shapes perception.
tinyurl.com/4bwy6nre
...𝑖𝑡'𝑠 𝑎𝑏𝑜𝑢𝑡 𝑡𝑖𝑚𝑒! ⏳
We find temporal confounds in fMRI that emulate neural patterns of perceptual learning.
These can be hard to spot with conventional RSA, but may influence our understanding of how prior knowledge shapes perception.
tinyurl.com/4bwy6nre
August 20, 2025 at 12:27 PM
Excited to share our new preprint...
...𝑖𝑡'𝑠 𝑎𝑏𝑜𝑢𝑡 𝑡𝑖𝑚𝑒! ⏳
We find temporal confounds in fMRI that emulate neural patterns of perceptual learning.
These can be hard to spot with conventional RSA, but may influence our understanding of how prior knowledge shapes perception.
tinyurl.com/4bwy6nre
...𝑖𝑡'𝑠 𝑎𝑏𝑜𝑢𝑡 𝑡𝑖𝑚𝑒! ⏳
We find temporal confounds in fMRI that emulate neural patterns of perceptual learning.
These can be hard to spot with conventional RSA, but may influence our understanding of how prior knowledge shapes perception.
tinyurl.com/4bwy6nre
Reposted by John Greenwood
JOB ALERT: Computational Cognitive Neuroscience Postdoc position in Osaka, Japan! Possible start in October 2025 (contact me ASAP), or from April 2026. PLEASE REPOST! #postdocjobs #neuroskyence #neuroscience #psychscisky #compneurosky #neurojobs 1/
July 18, 2025 at 3:34 AM
JOB ALERT: Computational Cognitive Neuroscience Postdoc position in Osaka, Japan! Possible start in October 2025 (contact me ASAP), or from April 2026. PLEASE REPOST! #postdocjobs #neuroskyence #neuroscience #psychscisky #compneurosky #neurojobs 1/
Reposted by John Greenwood
The University of Sydney is recruiting senior and mid-career academics "within the top 5–10% of academics in their field, with a strong track record and availability to relocate to Australia within 6-months".
If you're a psychologist/neuroscientist and are interested, get in touch with me soon.
If you're a psychologist/neuroscientist and are interested, get in touch with me soon.
July 9, 2025 at 8:55 AM
The University of Sydney is recruiting senior and mid-career academics "within the top 5–10% of academics in their field, with a strong track record and availability to relocate to Australia within 6-months".
If you're a psychologist/neuroscientist and are interested, get in touch with me soon.
If you're a psychologist/neuroscientist and are interested, get in touch with me soon.
Reposted by John Greenwood
Cool article about our recent paper by @nature.com 🤩 @peterkok.bsky.social, @smfleming.bsky.social www.nature.com/articles/d41...
How the brain separates real images from those it imagines
Neuroscientists have found the regions that keep them apart.
www.nature.com
June 12, 2025 at 7:49 AM
Cool article about our recent paper by @nature.com 🤩 @peterkok.bsky.social, @smfleming.bsky.social www.nature.com/articles/d41...
Reposted by John Greenwood
Franz Treichler guides David Stubbs through the archives of the Swiss trio who repurposed the sampler to give rock a new, industrial lease of life in the 1980s, before venturing into space influenced by ambient and techno
The Strange World Of… The Young Gods
buff.ly/lRU8gbM
The Strange World Of… The Young Gods
buff.ly/lRU8gbM
June 11, 2025 at 8:30 AM
Franz Treichler guides David Stubbs through the archives of the Swiss trio who repurposed the sampler to give rock a new, industrial lease of life in the 1980s, before venturing into space influenced by ambient and techno
The Strange World Of… The Young Gods
buff.ly/lRU8gbM
The Strange World Of… The Young Gods
buff.ly/lRU8gbM
Reposted by John Greenwood
I am so excited to share that our paper 'A neural basis for distinguishing imagination from reality' is now published in @cp-neuron.bsky.social! 🧠✨ See thread below! doi.org/10.1016/j.ne...
June 5, 2025 at 3:05 PM
I am so excited to share that our paper 'A neural basis for distinguishing imagination from reality' is now published in @cp-neuron.bsky.social! 🧠✨ See thread below! doi.org/10.1016/j.ne...
Reposted by John Greenwood
The second study of my PhD is out as a preprint, exploring experimentally-induced hallucination proneness across the lifespan! w/ Laura Haye @georgiamneuro.bsky.social @mlisi.bsky.social @jagreenwood.bsky.social l @thelablab.bsky.social @tessamdekker.bsky.social
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
Reduced susceptibility to experimentally-induced complex visual hallucinations with age
Visual hallucinations occur across many clinical conditions, but can also be induced experimentally in healthy individuals, using high-frequency flicker (Ganzflicker) and sensory deprivation (Ganzfeld...
www.biorxiv.org
June 4, 2025 at 12:19 PM
The second study of my PhD is out as a preprint, exploring experimentally-induced hallucination proneness across the lifespan! w/ Laura Haye @georgiamneuro.bsky.social @mlisi.bsky.social @jagreenwood.bsky.social l @thelablab.bsky.social @tessamdekker.bsky.social
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
Reposted by John Greenwood
Reposted by John Greenwood
This university bookstore is a giant Stroop test
May 24, 2025 at 2:39 PM
This university bookstore is a giant Stroop test
Reposted by John Greenwood
I’m excited to announce that I’m recruiting for a fully-funded 3.5-year PhD position in my lab in Southampton (UK). For details and to apply, see here: www.southampton.ac.uk/study/postgr...
Next Generation Ophthalmic Testing: “Continuous Psychophysics” for Rapid and User-Friendly Assessment of Visual, Movement, and Cognitive Disorders
Discover more about our research project: Next Generation Ophthalmic Testing: “Continuous Psychophysics” for Rapid and User-Friendly Assessment of Visual, Movement, and Cognitive Disorders at the U...
www.southampton.ac.uk
May 15, 2025 at 4:30 PM
I’m excited to announce that I’m recruiting for a fully-funded 3.5-year PhD position in my lab in Southampton (UK). For details and to apply, see here: www.southampton.ac.uk/study/postgr...
Reposted by John Greenwood
Choose Science. Choose Europe.
A new Marie Skłodowska-Curie Actions Postdoctoral Fellowships 2025 call is now open.
With a budget of €404.3 million, it will support around 1,650 researchers from Europe and beyond.
Apply by 10 September → europa.eu/!fBTMgF
A new Marie Skłodowska-Curie Actions Postdoctoral Fellowships 2025 call is now open.
With a budget of €404.3 million, it will support around 1,650 researchers from Europe and beyond.
Apply by 10 September → europa.eu/!fBTMgF
May 8, 2025 at 10:12 AM
Choose Science. Choose Europe.
A new Marie Skłodowska-Curie Actions Postdoctoral Fellowships 2025 call is now open.
With a budget of €404.3 million, it will support around 1,650 researchers from Europe and beyond.
Apply by 10 September → europa.eu/!fBTMgF
A new Marie Skłodowska-Curie Actions Postdoctoral Fellowships 2025 call is now open.
With a budget of €404.3 million, it will support around 1,650 researchers from Europe and beyond.
Apply by 10 September → europa.eu/!fBTMgF
Reposted by John Greenwood
🚨 Two open faculty positions in Cognitive Psychology (incl. visual perception) at University of Southern Denmark! 🚨
#PsychSciSky
#VisionScience
#neuroskyence
#compneurosky
#PsychSciSky
#VisionScience
#neuroskyence
#compneurosky
Two Assistant or Associate Professors in Cognitive Psychology
The Department of Psychology at the University of Southern Denmark (SDU) invites applications for two full-time faculty positions at the level of assistant or associate professor in cognitive psycholo...
fa-eosd-saasfaprod1.fa.ocs.oraclecloud.com
May 9, 2025 at 11:08 AM
🚨 Two open faculty positions in Cognitive Psychology (incl. visual perception) at University of Southern Denmark! 🚨
#PsychSciSky
#VisionScience
#neuroskyence
#compneurosky
#PsychSciSky
#VisionScience
#neuroskyence
#compneurosky
Reposted by John Greenwood
Dutch academia at a crossroads: Academic communities - not politicians - should decide teaching languages. Language barriers will damage world-class psychology programs. International education breeds innovation and develops future talent. Please consider supporting #AcademicFreedom !
An open letter supporting the international bachelor’s psychology programs threatened for cuts. Proceeding with these cuts would damage some of the most important and impactful psychology departments globally. #supportdutchpsychology
openletter.earth/against-lang...
openletter.earth/against-lang...
Against Language Barriers: A Call to Protect International Education in Dutch Academia
openletter.earth
April 30, 2025 at 9:37 AM
Dutch academia at a crossroads: Academic communities - not politicians - should decide teaching languages. Language barriers will damage world-class psychology programs. International education breeds innovation and develops future talent. Please consider supporting #AcademicFreedom !
Reposted by John Greenwood
Many processes from industry are not appropriate or overkill for an academic setting, but we can and should be doing better than we currently are.
Our paper tries to give practical advice on how you can improve your scientific workflow, without being a coding guru.
www.nature.com/articles/s44...
Our paper tries to give practical advice on how you can improve your scientific workflow, without being a coding guru.
www.nature.com/articles/s44...
Ten principles for reliable, efficient, and adaptable coding in psychology and cognitive neuroscience - Communications Psychology
Programming is essential for modern research in neuroscience and psychology, but it can quickly become a source of frustration and error. This Primer introduces ten practical principles guiding resear...
www.nature.com
April 16, 2025 at 1:23 PM
Many processes from industry are not appropriate or overkill for an academic setting, but we can and should be doing better than we currently are.
Our paper tries to give practical advice on how you can improve your scientific workflow, without being a coding guru.
www.nature.com/articles/s44...
Our paper tries to give practical advice on how you can improve your scientific workflow, without being a coding guru.
www.nature.com/articles/s44...
Reposted by John Greenwood
If GPT-4o walked into a neuro-opthalmology clinic, what would it be diagnosed with?
Here we administered 51 tests from 6 clinical and experimental batteries to assess vision in commercial AI models.
Very proud to share this first work from @genetang.bsky.social's PhD!
arxiv.org/abs/2504.10786
Here we administered 51 tests from 6 clinical and experimental batteries to assess vision in commercial AI models.
Very proud to share this first work from @genetang.bsky.social's PhD!
arxiv.org/abs/2504.10786
Visual Language Models show widespread visual deficits on neuropsychological tests
Visual Language Models (VLMs) show remarkable performance in visual reasoning tasks, successfully tackling college-level challenges that require high-level understanding of images. However, some recen...
arxiv.org
April 17, 2025 at 7:22 AM
If GPT-4o walked into a neuro-opthalmology clinic, what would it be diagnosed with?
Here we administered 51 tests from 6 clinical and experimental batteries to assess vision in commercial AI models.
Very proud to share this first work from @genetang.bsky.social's PhD!
arxiv.org/abs/2504.10786
Here we administered 51 tests from 6 clinical and experimental batteries to assess vision in commercial AI models.
Very proud to share this first work from @genetang.bsky.social's PhD!
arxiv.org/abs/2504.10786
Reposted by John Greenwood
The three stages of responding to referee comments:
Draft 1: letting it rip.
Draft 2: removing all the rip.
Draft 3: adding a dash of courteous language that would not be out of place in the gentile drawing rooms of Bridgerton.
Draft 1: letting it rip.
Draft 2: removing all the rip.
Draft 3: adding a dash of courteous language that would not be out of place in the gentile drawing rooms of Bridgerton.
April 9, 2025 at 1:39 PM
The three stages of responding to referee comments:
Draft 1: letting it rip.
Draft 2: removing all the rip.
Draft 3: adding a dash of courteous language that would not be out of place in the gentile drawing rooms of Bridgerton.
Draft 1: letting it rip.
Draft 2: removing all the rip.
Draft 3: adding a dash of courteous language that would not be out of place in the gentile drawing rooms of Bridgerton.
Reposted by John Greenwood
The development of visual acuity and crowding: Finding the balance between fine detail and 'gist' processing https://www.biorxiv.org/content/10.1101/2025.03.27.645750v1
March 28, 2025 at 10:15 PM
The development of visual acuity and crowding: Finding the balance between fine detail and 'gist' processing https://www.biorxiv.org/content/10.1101/2025.03.27.645750v1
Reposted by John Greenwood
Cognitive scientists who work across levels of analysis should be called Marr's Rovers
April 6, 2025 at 4:48 PM
Cognitive scientists who work across levels of analysis should be called Marr's Rovers
Reposted by John Greenwood
Come join us at Experimental Psychology at University College London - we're looking for a lecturer in computational cognition. Great place to work!
www.jobs.ac.uk/job/DML927/l...
www.jobs.ac.uk/job/DML927/l...
Lecturer in Computational Cognition at UCL
Explore an exciting academic career as a Lecturer in Computational Cognition. Don't miss out on other academic jobs. Click to apply and explore more opportunities.
www.jobs.ac.uk
April 2, 2025 at 8:19 PM
Come join us at Experimental Psychology at University College London - we're looking for a lecturer in computational cognition. Great place to work!
www.jobs.ac.uk/job/DML927/l...
www.jobs.ac.uk/job/DML927/l...