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greg_j_davis

@gregorydavis.bsky.social

‘Never knowingly Reviewer 2 www.viscog.psychol.cam.ac.uk Attention, Visual Cognition, Social Cognition, Security Screening, Decision-making Uni of Cambridge, DfT College of Experts Zebra Rump Stripes control attention ATLAS Task: https://rdcu.be/dU4sr

1,230 Followers  |  775 Following  |  1,033 Posts  |  Joined: 25.08.2023  |  2.0615

Latest posts by gregorydavis.bsky.social on Bluesky


Asian faces *100 times* greater false-positive rate than white faces!

25.02.2026 14:18 — 👍 1    🔁 0    💬 0    📌 0

“The #AI software, partially funded by #Palantir cofounder Peter Thiel’s venture firm Founders Fund, continues to provide age verification services for #OpenAI, Lime, and Roblox.”

25.02.2026 07:29 — 👍 4    🔁 5    💬 0    📌 0

Brilliant!

24.02.2026 18:58 — 👍 0    🔁 0    💬 0    📌 0

#Detectorists on BBC
is just so powerful, warmly uplifting and funny..

a rare treasure...

Nice one, Mackenzie Crook.

23.02.2026 00:11 — 👍 0    🔁 0    💬 0    📌 0

AI, pls autotranslate "the real problem of X is"

as "a problem it suits me/us to highlight is"

in any docs I read from now on.

Quicker to read and my blood pressure will stay lower! :)

22.02.2026 12:52 — 👍 0    🔁 0    💬 0    📌 0
Preview
Saint Francis of Assisi’s skeleton goes on public display for first time Hundreds of thousands of visitors expected for month-long display of remains of 13th-century saint Saint Francis of Assisi’s skeleton is going on full public display from Sunday for the first time, in a move that is expected to draw hundreds of thousands of visitors. Inside a nitrogen-filled plexiglass case with the Latin inscription “Corpus Sancti Francisci” (the body of Saint Francis), the remains are being shown in the Italian hillside town’s Basilica of Saint Francis of Assisi. Continue reading...

Saint Francis of Assisi’s skeleton goes on public display for first time

22.02.2026 10:21 — 👍 74    🔁 22    💬 25    📌 22
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'So playful' :D

21.02.2026 20:22 — 👍 1    🔁 0    💬 0    📌 0
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Grad pad, Cambridge blends beautifully into its surroundings like an angry, concrete spaceship :)

21.02.2026 20:09 — 👍 0    🔁 0    💬 1    📌 0
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Tho not soviet enough for grade 1 listing

21.02.2026 19:29 — 👍 1    🔁 0    💬 1    📌 0
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I have a grudging admiration for mid 20C architects who live in their own monstrous creations..

21.02.2026 18:14 — 👍 1    🔁 0    💬 1    📌 0

Great news!

20.02.2026 08:02 — 👍 1    🔁 0    💬 1    📌 0

Ham&High
CHILD SENT HOME WITH WRONG NANNY.

Ham&High CHILD SENT HOME WITH WRONG NANNY.

The most Hampstead news story ever written.

19.02.2026 19:13 — 👍 258    🔁 65    💬 9    📌 2

If you're principled refuser of review for Elsevier etc, think that's admirable...

But if you're submitting papers to the same journals, for which you refuse to review....?

19.02.2026 16:20 — 👍 2    🔁 0    💬 0    📌 0

Why does @microsoft.com Word need 3GB now
to do essentially the same stuff it used to do on 0.5 GB?

19.02.2026 10:59 — 👍 1    🔁 0    💬 0    📌 0

Guessing nobody in govt will be rocking that boat :D

19.02.2026 09:05 — 👍 1    🔁 0    💬 1    📌 0
Job Vacancy at the University of Nottingham: Teaching Associate (Fixed term, Multiple posts) We are looking for two Teaching Associate in the School of Psychology to deliver high quality teaching in one or more of the core areas of Psychology.We believe that diverse teams deliver the highest quality teaching, research and student experience...

2 x full-time teaching associate roles in psychology at the University of Nottingham.

One role is for a fixed-term contract for 18 months from 1 April 2026 and the second role is for a fixed-term contract ending on 31st July 2027.

jobs.nottingham.ac.uk/vacancy.aspx...

18.02.2026 12:26 — 👍 3    🔁 5    💬 0    📌 0
Microsabbaticals at Princeton Psychology Microsabbaticals at Princeton Psychology provide a several-week-long visit to our department for early-career faculty. The program focuses on early-career scholars who would benefit from interactions ...

Are you a junior faculty member interested in spending 2-4 weeks at Princeton Psych? Consider applying for our Microsabbatical program! It’s a fully funded visit for professional development and creating long-term collaborations.
psych.princeton.edu/diversity/mi...

18.02.2026 20:04 — 👍 61    🔁 49    💬 0    📌 2
Article: The political effects of X’s feed algorithm

Abstract: Feed algorithms are widely suspected to influence political attitudes. However, previous evidence from switching off the algorithm on Meta platforms found no political effects1. Here we present results from a 2023 field experiment on Elon Musk’s platform X shedding light on this puzzle. We assigned active US-based users randomly to either an algorithmic or a chronological feed for 7 weeks, measuring political attitudes and online behaviour. Switching from a chronological to an algorithmic feed increased engagement and shifted political opinion towards more conservative positions, particularly regarding policy priorities, perceptions of criminal investigations into Donald Trump and views on the war in Ukraine. In contrast, switching from the algorithmic to the chronological feed had no comparable effects. Neither switching the algorithm on nor switching it off significantly affected affective polarization or self-reported partisanship. To investigate the mechanism, we analysed users’ feed content and behaviour. We found that the algorithm promotes conservative content and demotes posts by traditional media. Exposure to algorithmic content leads users to follow conservative political activist accounts, which they continue to follow even after switching off the algorithm, helping explain the asymmetry in effects. These results suggest that initial exposure to X’s algorithm has persistent effects on users’ current political attitudes and account-following behaviour, even in the absence of a detectable effect on partisanship.

Article: The political effects of X’s feed algorithm Abstract: Feed algorithms are widely suspected to influence political attitudes. However, previous evidence from switching off the algorithm on Meta platforms found no political effects1. Here we present results from a 2023 field experiment on Elon Musk’s platform X shedding light on this puzzle. We assigned active US-based users randomly to either an algorithmic or a chronological feed for 7 weeks, measuring political attitudes and online behaviour. Switching from a chronological to an algorithmic feed increased engagement and shifted political opinion towards more conservative positions, particularly regarding policy priorities, perceptions of criminal investigations into Donald Trump and views on the war in Ukraine. In contrast, switching from the algorithmic to the chronological feed had no comparable effects. Neither switching the algorithm on nor switching it off significantly affected affective polarization or self-reported partisanship. To investigate the mechanism, we analysed users’ feed content and behaviour. We found that the algorithm promotes conservative content and demotes posts by traditional media. Exposure to algorithmic content leads users to follow conservative political activist accounts, which they continue to follow even after switching off the algorithm, helping explain the asymmetry in effects. These results suggest that initial exposure to X’s algorithm has persistent effects on users’ current political attitudes and account-following behaviour, even in the absence of a detectable effect on partisanship.

Figure 2. ITT estimates of feed-setting changes on engagement and political attitudes. ITT effect estimates of switching the algorithm on and off (in s.d.). Left, effect of moving from the chronological to the algorithmic feed for users initially on the chronological feed. Right, effect of moving in the opposite direction for users initially on the algorithmic feed. For each outcome, the results of two specifications are reported. Blue, unconditional estimates with robust s.e., controlling only for the initial feed setting and, where applicable, pre-treatment outcome levels. Orange: conditional estimates, controlling for pre-treatment covariates using GRFs; 90% and 95% CIs are reported. Numerical effect sizes and P values correspond to the conditional estimates (all tests are two-sided). The unit of observation is respondent. From top to bottom, sample sizes are n = 4,965, n = 3,337, n = 4,965, n = 4,965, n = 4,596, n = 4,596 and n = 4,850. Tests are described in Methods. Supplementary Information Table 2.16 reports the exact numerical point estimates, s.e., CIs and sample sizes for every specification. All outcomes are standardized. Additional results are presented in Supplementary Information section 2. PCA, first principal component from principal component analysis.

Figure 2. ITT estimates of feed-setting changes on engagement and political attitudes. ITT effect estimates of switching the algorithm on and off (in s.d.). Left, effect of moving from the chronological to the algorithmic feed for users initially on the chronological feed. Right, effect of moving in the opposite direction for users initially on the algorithmic feed. For each outcome, the results of two specifications are reported. Blue, unconditional estimates with robust s.e., controlling only for the initial feed setting and, where applicable, pre-treatment outcome levels. Orange: conditional estimates, controlling for pre-treatment covariates using GRFs; 90% and 95% CIs are reported. Numerical effect sizes and P values correspond to the conditional estimates (all tests are two-sided). The unit of observation is respondent. From top to bottom, sample sizes are n = 4,965, n = 3,337, n = 4,965, n = 4,965, n = 4,596, n = 4,596 and n = 4,850. Tests are described in Methods. Supplementary Information Table 2.16 reports the exact numerical point estimates, s.e., CIs and sample sizes for every specification. All outcomes are standardized. Additional results are presented in Supplementary Information section 2. PCA, first principal component from principal component analysis.

X's algorithm is in fact doing what you think it's doing. www.nature.com/articles/s41...

18.02.2026 17:24 — 👍 1881    🔁 729    💬 30    📌 87
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Pope Leo: “We perceive in the ashes imposed on us the weight of a world that is ablaze, of entire cities destroyed by war. This is also reflected in the ashes of international law and justice among peoples, the ashes of entire ecosystems and harmony among peoples, the ashes of critical thinking.”

18.02.2026 17:34 — 👍 180    🔁 81    💬 1    📌 11
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a bald man wearing glasses and a plaid shirt is talking on a phone ALT: a bald man wearing glasses and a plaid shirt is talking on a phone

Using Claude Code is a trip. I asked it to read some files, perform analysis and tabulate results. I noticed table didn't match the underlying data.

Asked Claude what happened. It can't read PDFs so it just made up the results. Next time provide tools for reading PDFs before asking me to do a thing

16.02.2026 23:23 — 👍 753    🔁 95    💬 33    📌 15

Using our bee-tracking drone, we discovered that honey bees 🐝 have highly precise and individual routes. Now published at @currentbiology.bsky.social : doi.org/10.1016/j.cu...

16.02.2026 16:22 — 👍 254    🔁 118    💬 6    📌 9

It's tough on young people. Intergenerational fairness should be something on which all political parties agree.

17.02.2026 21:05 — 👍 1    🔁 0    💬 1    📌 0

... after pouring cash into Deloitte's mouth for some years....

17.02.2026 19:06 — 👍 0    🔁 0    💬 0    📌 0
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Job Opportunity at the University of Kent: Lecturer in Psychology The School of Psychology is seeking to appoint a Lecturer in Psychology and a Lecturer in Psychology focusing on Cognition and Neuroscience  to join a collegial, supportive, and intellectually vibrant...

Kent Psychology is hiring 🎓We have two posts: 1) open area and 2) cog neuro. More details can be found here: jobs.kent.ac.uk/vacancy.aspx... Feel free to reach out with questions!

16.02.2026 10:10 — 👍 21    🔁 19    💬 0    📌 0

Feels like something from a Mel Brooks film...

Travelling salesman sells health potion that ends up causing a problem..

Returns a week later, thinly disguised,
to sell an antidote made of the same ingredients..

16.02.2026 13:40 — 👍 0    🔁 0    💬 0    📌 0
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Just because I keep seeing those "I checked this piece and it's written by AI" - this is an old article of mine, before AI was available. So could we not?

16.02.2026 10:27 — 👍 1117    🔁 277    💬 35    📌 89

Liz Kendall 👍

16.02.2026 08:39 — 👍 0    🔁 0    💬 0    📌 0

👏

15.02.2026 21:33 — 👍 0    🔁 0    💬 1    📌 0

"Disposable agents" highly irresponsible term
here meaning "tragic victims persuaded to be traitors, with rest of their lives to regret it"

?

15.02.2026 20:09 — 👍 0    🔁 0    💬 0    📌 0

same here! sounded like idealism to me... expect philip has a reason for it..

but feels like tail wagging the dog

15.02.2026 16:25 — 👍 1    🔁 0    💬 0    📌 0

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