A Human Electrophysiology, Anatomic Data & Integrated Tools (HeadIT) Resource
An online resource for human electrophysiology data and analysis tools
The EEGLAB signal processing environment for electrophysiology is being used in hundreds of laboratories around the world. It is our hope to sponsor the development of a data and allied tools resource that will allow convenient sharing, download, and re-analysis or meta-analysis of sophisticated human electrophysiological data sets. NIH funding for the HeadIT resource was granted to UCSD PIs Makeig and Grethe. Nima Bigdley Shamlo is currently directing technical development. Three EEG studies are currently publicly available at HeadIT.org.
Visospatial task data
We are also making available (below) a 238-channel, single-subject EEG data set recorded at the Swartz Center, UCSD reocrded by Arnaud Delorme, Julie Onton, and Scott Makeig. Results of studies using the (5-box) visuospatial selective attention task performed by the subject in this experiment have the subject of several papers (see below), Some results for this data set have also been published in two papers: Delorme, Westerfield, & Makeig (2007) and Makeig & Onton (2009, in press). The five-box task was first developed by Jeanne Townsend and Marissa Westerfield in the laboratory of Eric Courchesne at UCSD (1996).
Papers analyzing these data sets
- Makeig S, Onton J. ERP features and EEG dynamics: An ICA perspective (5.5 MB pdf) In: Oxford Handbook of Event-Related Potential Components, Ed. Luck S & Kappenman E, 2009 in press.
- Delorme A, Westerfield M, Makeig S. Medial prefrontal theta bursts precede rapid motor responses during visual selective attention. J Neurosci 27:11949-59, 2007 (665k pdf). Supplement (664k pdf).
For ease of download, the data set has been split into five EEGLAB datasets (each ~100Mb), each concatenating several 1-minute blocks of data in which the subject covertly attended to one of the five possible target locations. Consult the EEGLAB menu item 'Edit > About this dataset' for each dataset for the meaning of the event codes. Study the Five-Box task description ' file before attempting to analyze the data.
- Five-box task description (55 kB)
- Target_1.set -- 2008-12-10 14:56 (99.3 MB)
- Target_2.set -- 2008-12-10 14:56 (993. MB)
- Target_3.set -- 2008-12-10 14:57 (100.9 MB)
- Target_4.set -- 2008-12-10 14:57 (100.5 MB)
- Target_5.set -- 2008-12-10 14:57 (104.8 MB)
Reference papers on the 'five box' task
- Onton J, Makeig S. ICA example and Overview chapter: Why use ICA to decompose EEG/MEG data?, Progress in Brain Research, 2006.
- Onton J, Westerfield M, Townsend J, Makeig S. Interpreting EEG brain dynamics using independent component analysis. In: Neuroscience and Behavioral Reviews Special Issue: Development Through the Life Cycle, Eds: Ulman Lindenberger and Shu-Chen Li, 30:808-822, 2006.
- Makeig S, Delorme A, Westerfield M, Townsend J, Courchense E, Sejnowski TJ, Electroencephalographic brain dynamics following visual targets requiring manual responses. PLOS Biology, 2:742-762, 2004.
- Makeig S, Jung T-P, Sejnowski TJ. Having your voxels and timing them too? (721KB pdf). In: Exploratory Analysis and Data Modeling in Functional Neuroimaging (F. Sommer & A. Wichert, eds.), The MIT Press, 2002.
- Makeig S, Westerfield M, Jung T-P, Enghoff S, Townsend J, Courchesne E, Sejnowski TJ. Dynamic brain sources of visual evoked responses. Science, 295:690-694, 2002.
- Jung T-P, Makeig S, Westerfield M, Townsend J, Courchesne E, Sejnowski TJ. " Independent component analysis of single-trial event-related potentials (1.1 MB pdf)," Human Brain Mapping, 14(3):168-85,2001.
- Jung T-P, Makeig S, Westerfield W, Townsend J, Courchesne E, Sejnowski TJ. " Removal of eye activity artifacts from visual event-related potentials in normal and clinical subjects (1.3MB pdf)," Clinical Neurophysiology, 111:10, 1745-58, 2000.
- Makeig S, Westerfield M, Townsend J, Jung T-P, Courchesne E, Sejnowski TJ. Functionally independent components of the early event-related potential in a visual spatial attention task (450 KB pdf). Philosophical Transactions of the Royal Society: Biological Sciences 354:1135-44, 1999. The evoked response data (0.4MB tar.gz)
- Makeig S, Westerfield M, Jung T-P, Covington J, Townsend J, Sejnowski, Courchesne E. J. Neurosci. 19:2665-2680, 1999. Functionally independent components of the late positive event-related potential during visual spatial attention (1 MB pdf) Soc. Neurosci. members (.html) The evoked response data (2Mb tar.gz).
- Townsend J, Harris NS, Courchesne E. Visual attention abnormalities in autism: delayed orienting to locations. J Int Neuropsychol Soc 2:541-550, 1996.