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Functional and structural characterization of dendritic spine pathology in a mouse model of tauopathy.

Code ↔ Paper

1 match between paragraphs of the paper and lines of its authors' code, computed by the harvester (lexical-v1). Click a colored paragraph or line to see its counterpart.

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  1. [1] § STAR★Methods › Method details › Structural characterization of dendritic spines ↔ util/defaultparameter.m, the whole file · a weak match · score 0.65 · spine turnover module, motion correction, ratio, segmentation, dendritic

Paper

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The authors' code

MATLAB · 64 lines · 4.7 KB · GPL-3.0 · 1 match

  1. function para_default = defaultparameter
  2. % ------------------ edit with caution ---------------------------------
  3. %% movie denoise for feature detection (Don't change these parameters unless you are confident)
  4. para_default.GaussKernel = [4, 4, 2]; % movie denoise kernel (kernel size, kernel size, kernel SD)
  5. para_default.maxLength = 4000; % default dendritic width (pixel)
  6. %% parameter to feature segmentation
  7. para_default.linewidth = 6; % default dendritic width (pixel) (popup variable in GUI)
  8. para_default.th_grad = 2; % feature segmentation at 1/th_grad of the correlation map
  9. % increase this value would generate larger segmentation,
  10. % change range > 1
  11. para_default.w = 3; % feature segmentation neighborhood = w*linewidth
  12. % increase the value, correlation map would be computed from a larger neighborhood
  13. %% parameter to auto feature detection
  14. para_default.minarea = 5; % minimal allowed feature size (pixel)
  15. para_default.maxareagrad = 4; % maximal allowed feature area (pixel) = linewidth*maxareagrad
  16. para_default.MaxAR = 4; % maximal allowed feature aspect ratio
  17. para_default.autofeature = [2, 3.5]; % parameter for autofeature detection (don't change unless you are confident)
  18. para_default.autofeature_bg = 0.3; % background thresholding parameter
  19. % below this fraction of intensity
  20. % pixel will be counted as
  21. % background if not manually
  22. % selecting background
  23. para_default.ifbg = 0; % if manually select background for auto detection
  24. % set to 1, a window would pupup
  25. % allow users to select a background
  26. % area during autofeature detection. Facilitate
  27. % autodetection
  28. para_default.shaftlength = 60; % default shaft length in pixel (popup variable in GUI)
  29. para_default.spinedist = 3; % distance from dendrites for autodetection
  30. % spine search: spinedist * linewidth
  31. %% cross-session alignment (Don't change these parameters unless you are confident)
  32. para_default.ops.withrotation = 1; % alignment with rotation 0(without)/1(with)
  33. para_default.ops.maxIter = 150; % max iteration
  34. para_default.ops.tot = 10^-4; % max tolerance
  35. para_default.ops.distTh = [2, 50]; % [min max] distance threshold
  36. para_default.ops.dispreg = 0; % display
  37. para_default.ops.pointsdetection = [2, 2.5, 2]; % point cloud detection parameters
  38. %% motion correction (Don't change these parameters unless you are confident)
  39. para_default.RegPara.PhaseCorrelation = 1; % set to 0 for non-whitened cross-correlation
  40. para_default.RegPara.SubPixel = Inf; % 2 is alignment by 0.5 pixel, Inf is the exact number from phase correlation
  41. para_default.RegPara.maxDispPerFrame = []; % maximal displacement per frame. recommend [20, 20];
  42. % If empty, values set by 3.5*SD of displacement at initial alignment
  43. % Smaller value is not recommended
  44. para_default.RegPara.lowCorr = 0.1; % minimal registered-to-target correlation. Larger value is not recommended
  45. % initialize motion correction
  46. para_default.RegPara.NiterPrealign = 20; % Number of iteration for initial registrition
  47. para_default.RegPara.iniSearchiter = 5; % Max iteration for chunk searching for initial registrition.
  48. para_default.RegPara.FrameNoiniAlign = 100; % Number of frames for initial alignment.
  49. % This value would be bounded by system memory
  50. % and video length in processing
  51. para_default.RegPara.MinCorr_initial = 0.2; % chunk search continue when initial registrition correlation below this value
  52. %% denoise trace (Input Mapping and Spine Turnover module)
  53. para_default.Denoise.movingaverage = 5; % moving average window size
  54. para_default.Denoise.gaussfilt = [10, 0.3, 20]; % gaussian filtering [fps, signal filter kernel, baseline filter kernel]
  55. para_default.spineRetain = 10; % threshold for mapping cross-session spines

defaultparameter.m at commit c94c78e, under GPL-3.0 · at the source

Overview

Authors: Liam M. Adsit1,2, Kyle Cekada2,3, Ikuko T. Smith1,2,3
ORCID iDs: Ikuko T. Smith
  1. Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
  2. Neuroscience Research Institute, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
  3. Department of Psychological and Brain Sciences, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
Institutions: University of California, Santa Barbara (United States)
Journal: iScience, volume 29, issue 9, article 117187
Dates: received 9 February 2026; accepted 28 July 2026; published online 14 August 2026
Type: Research article · Language: English
License: CC BY-NC
Identifiers: DOI 10.1016/j.isci.2026.117187 · PMID 42643223 · PMCID PMC13503137 · OpenAlex W7164362634
Open access: gold, a free copy (OpenAlex)
Status: code verified
Categories: histology / microscopy (modality), mouse (organism), Alzheimer's / dementia (population)
Methods: Spectral & time-frequency, Statistics, Machine learning, Preprocessing, fMRI & imaging, Single-unit activity, calcium imaging
Keywords: neurodegenerative disease, tauopathy, dendrite, dendritic spine, spine loss, spine pathology, input mapping
Topic: Neuroscience and Neuropharmacology Research (Cellular and Molecular Neuroscience, Neuroscience), according to OpenAlex
Funding: Brain Research Foundation (BRFSG-2019-05); Brain and Behavior Research Foundation NARSAD Young Investigator Grant (30481); NIH (R01NS128079)
Citations: not cited yet (Europe PMC); 77 references in the paper
Research resources: Anti-MAP2 RRID:AB_2138153, AT8 RRID:AB_223647, Goat anti-mouse Alexa 594 RRID:AB_2534073, Goat anti-chicken Alexa 488 RRID:AB_2534096, ImageJ RRID:SCR_003070

Abstract

Abnormal deposition of the microtubule-associated protein tau has long been associated with spine loss and neuronal death in neurodegenerative diseases. Elucidating how pathological tau affects synaptic activity in vivo and whether individual synaptic properties dictate the survival fate of dendritic spines is central to understanding disease progression. Here we examined the visual response properties of layer 2/3 primary visual cortical dendrites and spines, using longitudinal two-photon calcium imaging in the P301S mouse model of tauopathy. Neuronal outputs in tau mutant mice were hyperactive and poorly tuned whereas dendritic spine responses were also poorly tuned but hypoactive. Moreover, in controls, stable spines were larger in size and more sharply tuned but less active compared to those that turned over. Such a function-to-structure relationship was absent in mutants. Our findings illustrate how tauopathy disrupts the preferential maintenance of well-tuned inputs in healthy neural circuitry, resulting in poorly tuned visual responses.

Reproduced under the paper's license (CC BY-NC), from the paper cited above.

Repositories

Its files are read in the Code ↔ Paper reader above, with 1 match between paragraphs and lines of code.

gtzook/iSLAB-data-analysis

License: none: the authors keep all their rights
State: the link answers, verified on 27 September 2026
Evidence: files inventoried
Commit: 86660790d6715318eb2fdc011771dba402e33949, 7 April 2026
Languages: MATLAB (30)
Size: 64 files, 30 scripts
Software Heritage: not archived
Found in: “Data and code availability”
Not found: README, license file, CITATION.cff, environment file, tests, continuous integration, documentation
Availability: 1 check, the latest on 27 September 2026: the link answers
  • 27 September 2026: the link answers
30 files

yuyiyi/AUTOTUNE_GUIdevelopment

License: GPL-3.0
State: the link answers, verified on 27 September 2026
Evidence: files inventoried
Commit: c94c78e31e1f605baa104ccd164953029ccabf15, 6 June 2024
Languages: MATLAB (134)
Size: 150 files, 134 scripts
Software Heritage: not archived
Found in: the text, “Structural characterization of dendritic spines”
Holds: README, license file
Not found: CITATION.cff, environment file, tests, continuous integration, documentation
Availability: 1 check, the latest on 27 September 2026: the link answers
  • 27 September 2026: the link answers
136 files

The paper's code and data availability statement is in the Data section.

Tracing map

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  • 2 repositories of the authors' code, each at its verified commit, with its license and how the link was found in the paper;
  • 164 scripts, each with its path and the digest of its content;
  • 1 match between paragraphs of the paper and lines of the code (method lexical-v1);
  • neither the text of the paper nor the code itself.

Its JSON (tracing-map.json) is deposited on Zenodo with its DOI once the map is validated.

Data

Datasets cited

Data and code availability

• All data reported in this paper will be shared by the lead contact upon request. Processed data of calcium imaging have been deposited at Mendeley Data and are publicly available as of the date of publication. The DOI is listed in the key resources table. • All original code has been deposited at GitHub and is publicly available at https://github.com/gtzook/iSLAB-data-analysis as of the date of publication. • Any additional information required to reanalyze the data reported in this paper is available from the lead contact upon request.

Reproduced under the paper's license (CC BY-NC), from the paper cited above.

Versions

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Version 1, 27 September 2026: the first record

Recorded: type, language, journal, volume, issue, pages, dates, 3 authors, 7 keywords, 3 funders, 75 references, 5 RRIDs.

Cite

This paper

Adsit, L. M., Cekada, K., & Smith, I. T. (2026). Functional and structural characterization of dendritic spine pathology in a mouse model of tauopathy. iScience, 29(9), 117187. https://doi.org/10.1016/j.isci.2026.117187

BibTeX

@article{adsit2026functional,
author = {Adsit, Liam M. and Cekada, Kyle and Smith, Ikuko T.},
title = {{Functional and structural characterization of dendritic spine pathology in a mouse model of tauopathy}},
journal = {iScience},
year = {2026},
month = aug,
volume = {29},
number = {9},
pages = {117187},
publisher = {Elsevier},
issn = {2589-0042},
doi = {10.1016/j.isci.2026.117187},
url = {https://doi.org/10.1016/j.isci.2026.117187},
pmid = {42643223},
pmcid = {PMC13503137}
}

RIS

TY - JOUR
AU - Adsit, Liam M.
AU - Cekada, Kyle
AU - Smith, Ikuko T.
TI - Functional and structural characterization of dendritic spine pathology in a mouse model of tauopathy
T2 - iScience
J2 - iScience
PY - 2026
DA - 2026/08/14
VL - 29
IS - 9
SP - 117187
SN - 2589-0042
PB - Elsevier
DO - 10.1016/j.isci.2026.117187
UR - https://doi.org/10.1016/j.isci.2026.117187
LA - en
ER -

CSL-JSON

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The tracing map gets a citation of its own once an author has validated it and it has a DOI.

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