help > Denoising Error
Apr 17, 2026  09:04 PM | Jeff Browndyke
Denoising Error

I keep on running into a reproducible issue with the new CONN version (25.b) using MATLAB 2025.  It crops up when I try to rerun denosing procedures or applying denoising to new ROIs.  

Any ideas on what might be happening?  Essentially, once I see this error, I can no longer add ROIs to a CONN study file.



Step 4/6: Denoising ROI data

Regression : White Matter (5P) (5 dimensions; no polynomial expansion; no temporal expansion; non-filtered; session-specific)
Regression : CSF (5P) (5 dimensions; no polynomial expansion; no temporal expansion; non-filtered; session-specific)
Regression : realignment (12P) (6 dimensions; no polynomial expansion; added first-order derivative; non-filtered; session-specific)

Regression : scrubbing (413P) (413 dimensions; no polynomial expansion; no temporal expansion; non-filtered; session-specific)
Regression : Effect of base (2P) (1 dimensions; no polynomial expansion; added first-order derivative; non-filtered; session-specific)
Regression : Effect of 9mos (2P) (1 dimensions; no polynomial expansion; added first-order derivative; non-filtered; session-specific)
Regression : Effect of 18mos (2P) (1 dimensions; no polynomial expansion; added first-order derivative; non-filtered; session-specific)
Order : Regression followed by filtering (RegBP)
Detrending : 1
Despiking : 0
Bandpass : [0.008 0.09]

ERROR DESCRIPTION:

Error using cellfun
Input #2 expected to be a cell array, was double instead.

Error in conn_process (line 2015)
enames=cellfun(@(nroi)arrayfun(@(n)sprintf('%s_%d',names{nroi},n),1:size(data{nroi},2),'uni',0),1:numel(data),'uni',0);
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error in conn_process (line 69)
case {'preprocessing_gui','denoising_gui'}, conn_disp(['CONN: RUNNING DENOISING STEP']); conn_process([1.5,2,6:9],varargin{:});
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error in conn (line 7909)
conn_process('denoising_gui'); ispending=false;
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error in conn_menumanager (line 125)
feval(CONN_MM.MENU{n0}.callback{n1}{1},CONN_MM.MENU{n0}.callback{n1}{2:end});
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
CONN25.b
SPM25 + DAiSS DEM FieldMap MEEGtools cat12
Matlab v.2025b
project: CONN25.b
storage: 2512.0Gb available

Threaded View

TitleAuthorDate
Denoising Error
Jeff Browndyke Apr 17, 2026
Yann Quide Apr 22, 2026
joycjx May 20, 2026
joycjx May 20, 2026
Jeff Browndyke Apr 23, 2026
Yann Quide Apr 29, 2026
Alfonso Nieto-Castanon May 1, 2026
Alfonso Nieto-Castanon May 1, 2026