Quality Control

Quality control procedures for the LAION-fMRI dataset.

Overview

Quality control (QC) ensures data integrity and identifies potential issues before analysis. All data undergoes both automated and manual QC procedures.

MRIQC

Visual Inspection

QC Reports

Automated Report Generation

QC reports are generated for each subject and run:

derivatives/mriqc/
└── sub-01/

QC Thresholds

Recommended Exclusion Criteria

Motion-based exclusion:

Mean FD > 0.5 mm
Maximum FD > 3.0 mm
More than 20% of volumes with FD > 0.5 mm

Signal quality exclusion:

Mean tSNR < 50
Excessive signal dropout (> 5% of volumes)
Poor anatomical-functional registration

Behavioral exclusion:

Accuracy < 60%
Miss rate > 20%
No responses recorded

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