Cortical Activity During Loud and Soft Inner Speech from Eight Participants

A 224.0 KB dataset from figshare contains fMRI data from an experiment where eight participants performed inner speech tasks. The data, authored by Barry H. Cohen and last updated in 2026, likely includes neural activity measurements from cortical speech motor and auditory perception areas. The study compared brain activity during loud versus soft inner speech, as well as during listening and overt speech conditions.

Use Cases

• Training classifiers to decode inner speech loudness based on cortical activity patterns.
• Investigating the neural overlap between inner speech and overt speech production.
• Developing neurofeedback protocols aimed at modulating the subjective volume of inner speech.
• Comparing suppression patterns in auditory perception areas during different levels of inner speech.

Strengths

• Data is from a controlled fMRI experiment with eight human participants.
• Includes comparisons across multiple conditions: soft inner speech, loud inner speech, listening, and overt speech.
• Released under a permissive CC-BY-4.0 license.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

figshare

Collection Method

Data collected via fMRI scanning during controlled inner speech, listening, and overt speech tasks.

Freshness

Last updated 2026-05-01 05:27:40; freshness should be verified.