How to download the HCP FIX-denoising data

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a1187551363

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Mar 2, 2026, 2:23:44 PMMar 2
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I want to know how to use the command line in a Linux system to download data containing FIX-denoise, including the classification labels and files output by FIX.

Tim Coalson

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Mar 2, 2026, 6:50:52 PMMar 2
to hcp-...@humanconnectome.org
Command line and our Aspera server don't currently work very well together, but a user found this approach to download packages:


For a more user-friendly way, we recommend mounting your network filesystem on a computer that you can run a browser with Aspera on (and has good bandwidth to both the internet and the network filesystem), and downloading packages that way.

We plan to implement a command line method to download single files rather than packages at some point.

Tim


On Mon, Mar 2, 2026 at 1:23 PM a1187551363 <a1187...@gmail.com> wrote:

I want to know how to use the command line in a Linux system to download data containing FIX-denoise, including the classification labels and files output by FIX.

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tianye chen

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Mar 3, 2026, 1:31:14 PMMar 3
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Dear HCP Support Team,

I want to conduct some research using the IC and TC after ICA and the labels after FIX classification. I have downloaded data from the HCP Young Adult 2025 release.

For one subject, the directory structure under:

MNINonLinear/Results/
    rfMRI_REST1_RL
    rfMRI_REST2_RL
    rfMRI_REST1_LR
    rfMRI_REST2_LR

contains only the processed fMRI data, but I cannot find:

  • ICA spatial maps (e.g., melodic_IC.nii.gz)

  • ICA time series (e.g., melodic_mix.txt)

  • FIX classification outputs or component labels

The 2025 release documentation mentions updated spatial and temporal ICA processing. I would like to confirm:

  1. Are subject-level ICA component maps and FIX classification labels still publicly available?

  2. If so, in which data package or directory can they be found?

  3. Are they included in the S1200 Extensively Processed data, or provided separately?

  4. Is there a recommended command-line or package-based method to download ICA outputs specifically?

My research requires access to the individual ICA components and their corresponding noise/signal labels.

Thank you very much for your guidance.

Best regards,
Tianye Chen


Tim Coalson <tim.c...@gmail.com> 于2026年3月3日周二 07:50写道：
To view this discussion visit https://groups.google.com/a/humanconnectome.org/d/msgid/hcp-users/CANm3QU7cG4%3DPuUxj3rqbgU7e8z6mq502pXqX3NmhkziEP_9RHA%40mail.gmail.com.

Elam, Jennifer

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Mar 5, 2026, 6:52:35 PMMar 5
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Hi Tianye,
The extended Resting State data containing the FIX classification outputs or component labels are not currently available in BALSA. When we have the planned REST interface in place in the next few months these files will be available for the 2025 release data.

These files from the S1200 release are available in the HCP AWS S3 bucket. If you have AWS keys from before ConnectomeDB was shut down, you can access that data there. We are working on getting AWS key generation implemented in BALSA hopefully in the next few weeks, but it is not yet in place. 

Note: the HCP-YA 2025 data has updated processing that the S1200 data does not have. We recommend using the HCP-YA 2025 data.

Best,
Jenn


From: tianye chen <a1187...@gmail.com>
Sent: Tuesday, March 3, 2026 12:30 PM
To: hcp-...@humanconnectome.org <hcp-...@humanconnectome.org>
Subject: Re: [hcp-users] How to download the HCP FIX-denoising data
 

 

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tianye chen

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Mar 5, 2026, 7:01:51 PMMar 5
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Dear Jenn,

Thank you very much for your helpful explanation.

Unfortunately, I do not have AWS keys from before ConnectomeDB was shut down, so I am currently unable to access the S1200 data in the HCP AWS S3 bucket.

My research specifically requires the ICA component maps, time courses, and FIX classification labels (e.g., melodic_IC.nii.gz, melodic_mix, and the component classification files). 

Since these files are not yet available in the HCP-YA 2025 release on BALSA, I was wondering if it might be possible to obtain temporary AWS credentials or another temporary access method to download the relevant S1200 files while the new AWS key generation system is being implemented.

I would only need access to the ICA/FIX outputs rather than the full dataset, so the amount of data required would be relatively small.

Thank you very much for your time and assistance.

Best regards,
Tianye Chen


---- Replied Message ----

Elam, Jennifer

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Mar 6, 2026, 8:10:25 AMMar 6
to hcp-...@humanconnectome.org, Smith, John
Hi Tianye,
We don't have a way to generate temporary AWS credentials. We do hope to have the AWS key generation implemented in the next few weeks. Stay tuned, we will announce it here on the list when available.

Best,
Jenn
From: tianye chen <a1187...@gmail.com>
Sent: Thursday, March 5, 2026 6:01 PM

Glasser, Matthew

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Mar 9, 2026, 7:41:06 AMMar 9
to hcp-...@humanconnectome.org, Smith, John

I don’t think this will help, as the final classifications won’t be available.  Also, sICA+FIX was not run on all the data prior to the new release.


Matt.

a1187551363

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Mar 9, 2026, 7:57:02 AMMar 9
to hcp-...@humanconnectome.org, hcp-...@humanconnectome.org, Smith, John
Hi Matthew,

Just to clarify—am I correct that the new dataset will only include preprocessed data after ICA regression, without the IC labels or regression data?

If you’ve kept a version with those labels and data, could you share it? It would be really helpful for our analyses.

Thanks so much!

Best,
Tianye Chen
---- Replied Message ----

Glasser, Matthew

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Mar 9, 2026, 7:58:45 AMMar 9
to hcp-...@humanconnectome.org, Smith, John

We have them and intend to make them available in the future via the planned REST interface.


Matt.

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