Human Superior Colliculi Hemodynamic Response Function Data from 9.4T MRI

A study employing ultra-high-field (9.4T) functional MRI to measure blood oxygenation level dependent (BOLD) responses in the human superior colliculus during a visual-motor task. The dataset, authored by Nooshin J. Fesharaki and last updated in April 2026, shows a spatial gradient of hemodynamic response functions along the rostro-caudal axis. The work demonstrates the feasibility of non-invasively examining neurovascular dynamics in small, deep subcortical brain structures.

Use Cases

• Modeling the spatial gradient of hemodynamic response functions (HRF) based on rostro-caudal axis measurements.
• Investigating the link between foveal representation and fixation-related activity based on rostral SC data.
• Analyzing the association between peripheral visual field representation and saccades based on caudal SC observations.
• Comparing positive and negative BOLD HRF dynamics within a small, deep brain structure.

Strengths

• Data was collected using ultra-high-resolution 9.4T MRI, providing high signal detail.
• Analysis shows systematic and consistent rostro-caudal evolution of HRFs both within and across subjects.
• Dataset is openly shared under a CC-BY-4.0 license.

Limitations

• The dataset is a 387.3 KB PDF file, which suggests a limited scope, likely containing summary figures or results rather than raw time-series data.
• Column-level documentation and sample data are unavailable; data structure and semantics must be inferred from the paper.
• Row count is unknown, which may limit suitability assessment for direct machine learning applications.

Provenance

Source

figshare

Collection Method

Blood oxygenation level dependent (BOLD) functional MRI responses measured during a sequence-following visual-motor task.

Time Range

Study period not specified in metadata.

Freshness

Last updated 2026-04-16 04:19:14

Geography

Human brain study; specific geographic location of subjects not provided.