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Samuel Davenport Profile
Samuel Davenport

@BrainStatsSam

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Research Fellow in Neuroimaging-Statistics @UCSD working from Turin. Research on multiple testing, selective inference, resampling methods, random field theory.

San Diego, US
Joined May 2013
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@BrainStatsSam
Samuel Davenport
8 months
Are you at #OHBM2024? Come check out my talk on Localized Cluster Enhancement - TFCE revisited with valid error control, in the oral session on advanced statistical methods on Wednesday at 11.30. Or poster 1871, on Wednesday/Thursday to see how to improve the validity of TFCE (1)
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@BrainStatsSam
Samuel Davenport
2 months
RT @mbeisen: It's an absolute scandal and tragedy that India is forced to spend $250m/year to provide access to the latest science to its pโ€ฆ
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@BrainStatsSam
Samuel Davenport
2 months
@ValerioCapraro I get strongly disagree for both man/woman for both gpt4o and claude.
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@BrainStatsSam
Samuel Davenport
4 months
RT @MFarajtabar: 1/ Can Large Language Models (LLMs) truly reason? Or are they just sophisticated pattern matchers? In our latest preprint,โ€ฆ
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@BrainStatsSam
Samuel Davenport
5 months
RT @sTeamTraen: Just submitted this review. Is my request reasonable? The paper consists mostly of hierarchical regression analysis, with aโ€ฆ
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@BrainStatsSam
Samuel Davenport
5 months
RT @JuanEugenioIgl1: We have updated NextBrain with: - new atlas with improved brainstem. - updated segmentation code. - new labeled ex vivโ€ฆ
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@BrainStatsSam
Samuel Davenport
6 months
RT @PaulNaish78: Big News! On behalf of the ASA, Taylor & Francis are launching a new journal: ๐—ฆ๐˜๐—ฎ๐˜๐—ถ๐˜€๐˜๐—ถ๐—ฐ๐˜€ ๐—ฎ๐—ป๐—ฑ ๐——๐—ฎ๐˜๐—ฎ ๐—ฆ๐—ฐ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ ๐—ถ๐—ป ๐—œ๐—บ๐—ฎ๐—ด๐—ถ๐—ป๐—ด Theโ€ฆ
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@BrainStatsSam
Samuel Davenport
7 months
RT @lpachter: Challenge accepted. Here are a few comments on the paper after starting to wade through its massive content. The paper in queโ€ฆ
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@BrainStatsSam
Samuel Davenport
7 months
If you're not interested in the null hypothesis of zero effect then you shouldn't be testing it. But then you have to specify a minimum effect size of interest. If you can't do that maybe you should be testing the null.
@gangchen6
Gang Chen
7 months
Ever noticed how neuroimaging papers love flaunting t, Z, or p values with color bars and tables but rarely show actual effect magnitudes? Itโ€™s like physicists talking about the speed of light and just giving a p-valueโ€”great for keeping things mysterious!
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@BrainStatsSam
Samuel Davenport
7 months
@PessoaBrain If that's the case then it substantially limits the Bayesian's ability to criticise the null hypothesis testing framework. I.e. if you can't say when an effect is too small to matter then you shouldn't have a problem with testing the null (directionally).
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@BrainStatsSam
Samuel Davenport
7 months
RT @lakens: Just a reminder that if you can not specify which effects are too small to matter, and 'any effect matters', no effect can falsโ€ฆ
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Samuel Davenport
7 months
@Yifanyu12 In what sense does it account for more variation than the ALE reshuffling null?
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@BrainStatsSam
Samuel Davenport
7 months
RT @Yifanyu12: We introduce a new coordinate-based meta-regression (CBMR) framework for coordinate-based meta-analysis (CBMA), which uses aโ€ฆ
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@BrainStatsSam
Samuel Davenport
7 months
RT @TimothyRaben: The UK Biobank (UKB) has been an amazing field changing resource for the past decade. Unfortunately, and very suddenly, tโ€ฆ
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@BrainStatsSam
Samuel Davenport
7 months
@benedikt_sun @afni_pt @sNeuroble @CyrilRPernet @ten_photos @AGerlachPhD Right but that's my point, the type of see-through thresholding that @afni_pt is advocating cannot distinguish signal from noise. And I'm not just talking about the global null but also local nulls around the brain.
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@BrainStatsSam
Samuel Davenport
7 months
@afni_pt @sNeuroble @benedikt_sun @CyrilRPernet @ten_photos @AGerlachPhD But I come back to my earlier question which is what would you plot if you just have smooth noise? (Something you can't actually know). The plots would be very similar it would seem meaning that these plots can be rather misleading! And thus this does not count as evidence.
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@BrainStatsSam
Samuel Davenport
7 months
@afni_pt @sNeuroble @benedikt_sun @CyrilRPernet @ten_photos @AGerlachPhD What do you mean by "evidence of the results" that sounds good but I don't think it's well defined. You have no probabilistic guarantees on those findings.
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@BrainStatsSam
Samuel Davenport
7 months
@edwinhayward The libdems got about 10 percent of the vote and just over 10 percent of the seats so their seats are basically what they would have got under proportional representation. So I don't see why he shouldn't be celebrating.
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@BrainStatsSam
Samuel Davenport
7 months
@CyrilRPernet @benedikt_sun @afni_pt @ten_photos @AGerlachPhD @sNeuroble Thanks for the reference, it looks interesting! I'll give it a proper read when I have a chance a bit later.
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@BrainStatsSam
Samuel Davenport
7 months
@benedikt_sun @afni_pt So we should have a pre-print on how to do this in neuroimaging coming out at the end of the summer hopefully. However to see the idea in a different context (2D climate data) which has the same principles see e.g. this reference:
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