Human EEG and Intracranial Unit Recordings During a Verbal Working Memory Task

Nine epilepsy patients performed a modified Sternberg verbal working memory task. The dataset includes simultaneous scalp EEG, intracranial EEG (iEEG), and waveforms and spike times for 1526 medial temporal lobe units, alongside electrode coordinates and trial information. It was presented by Ece Boran of the University of Zurich to enable investigation of working memory mechanisms.

Use Cases

• Analyzing connectivity between brain regions based on simultaneous scalp and intracranial EEG recordings.
• Investigating unit-level neural correlates of memory encoding, maintenance, and recall phases.
• Studying the relationship between local field potentials (iEEG) and single-unit activity in the medial temporal lobe.
• Validating computational models of working memory using human electrophysiological data with precise anatomical labels.

Strengths

• Includes simultaneous recordings from three modalities: scalp EEG, intracranial EEG, and 1526 single units.
• Provides precise anatomical context with MNI coordinates and labels for all intracranial electrodes.
• Contains detailed trial-level behavioral data including set size, match/mismatch condition, correctness, response, and response time.

Limitations

• Row count and file size are unknown, which may limit suitability assessment for large-scale analysis.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data is from a specific clinical population (epilepsy patients), which may limit generalizability.

Provenance

Source

University of Zurich

Collection Method

Recorded from nine epilepsy patients undergoing intracranial monitoring while performing a modified Sternberg task.