Computer-controlled electrical stimulation for quantitative mapping of human cortical function

Autor:	Dona K. Murphey, John H. R. Maunsell, Yadin David, Michael S. Beauchamp, Mario F. Dulay, Ping Sun, Daniel Yoshor
Rok vydání:	2009
Předmět:	business.industry media_common.quotation_subject Stimulation Data mapping medicine.anatomical_structure Visual cortex Cerebral cortex medicine Research studies Psychophysics Intracranial electrodes Function (engineering) business Neuroscience media_common
Zdroj:	Journal of Neurosurgery. 110:1300-1303
ISSN:	1933-0693 0022-3085
DOI:	10.3171/2008.2.jns17666
Popis:	Cortical mapping with electrical stimulation (ES) in neurosurgical patients typically involves the manually controlled delivery of suprathreshold electrical current to a discrete area of the brain. Limited numbers of trials and imprecise current delivery methods increase the variability of the behavioral response and make it difficult to collect quantitative mapping data, which is especially important in research studies of human cortical function. To overcome these limitations, the authors developed a method for computer-controlled delivery of defined electrical current to implanted intracranial electrodes. They demonstrate that stimulation can be time locked to a behavioral task to rapidly and systematically measure the detection threshold for ES in human visual cortex over many trials. Computer-controlled ES is well suited for the systematic and quantitative study of the function of virtually any region of cerebral cortex. It may be especially useful for studying human cortical regions that are not well characterized and for verifying the presence of stimulation-evoked percepts that are difficult to objectively confirm.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bcabbc86d1a0a5fd2aefb9198c16c7ad https://doi.org/10.3171/2008.2.jns17666 Zobrazit plný text záznamu