Title :
Flexible multi electrode brain-machine interface for recording in the cerebellum
Author :
Köhler, P. ; Linsmeier, C. Eriksson ; Thelin, J. ; Bengtsson, M. ; Jörntell, H. ; Garwicz, M. ; Schouenborg, J. ; Wallman, L.
Author_Institution :
Med. Fac., Lund Univ., Lund, Sweden
Abstract :
A new type of chip based microelectrode for acute electrophysiological recordings in the CNS has been developed. It´s designed to be adaptable to a multitude of specific neuronal environments, in this study the cerebellar cortex of rat and cat. Photolithographically patternened SU-8 is used to yield flexible and biocompatible penetrating shanks with gold leads. Electrodes with an impedance of about 300 kOmega at 1 kHz have excellent signal to noise ratio in acute recordings in cat cerebellum.
Keywords :
bioMEMS; bioelectric phenomena; biomedical electrodes; brain; brain-computer interfaces; microelectrodes; photolithography; prosthetics; CNS acute electrophysiological recordings; biocompatible penetrating shanks; brain-machine interface; cerebellar recording; chip based microelectrode; electrodes; feline cerebellar cortex; flexible multielectrode MBI; gold leads; murine cerebellar cortex; photolithographically patternened SU-8; Animals; Cats; Cerebellum; Computer-Aided Design; Elastic Modulus; Electrodes, Implanted; Electroencephalography; Equipment Design; Equipment Failure Analysis; Evoked Potentials; Microelectrodes; Rats; Reproducibility of Results; Sensitivity and Specificity; User-Computer Interface;
Conference_Titel :
Engineering in Medicine and Biology Society, 2009. EMBC 2009. Annual International Conference of the IEEE
Conference_Location :
Minneapolis, MN
Print_ISBN :
978-1-4244-3296-7
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2009.5333498
