Affiliations: [a] School of Engineering, Nagoya University, Furo-cho,
Chikusa-ku, Nagoya 464-8603, Japan. Tel.: +81 52 789 2793; Fax: +81 52 789
3166; E-mail: [email protected]
| [b] Department of Physiology, The Institute for
Developmental Research, 713-8 Kamiya-cho, Kasugai 480-0392, Japan. Tel.: +81
568 88 0811, ext, 3542; Fax: +81 568 88 0829; E-mail:
[email protected]
| [c] Graduate School of Medicine, Osaka University,
Yamadaoka, Suita 565-0871, Japan. Tel.: +81 6 6879 3941; Fax: +81 6 6879 3948;
E-mail: [email protected]
| [d] School of Engineering, Nagoya University, Furo-cho,
Chikusa-ku, Nagoya 464-8603, Japan The Institute of Physical and Chemical
Research (RIKEN), Anagahora, Shimoshidami, Moriyama-ku Nagoya 463-0003, Japan.
Tel.: +81 52 789 2793; Fax: +81 52 789 3166; E-mail:
[email protected]
Abstract: In a visual prosthesis, the visual nervous system of blind people
are stimulated electrically in order to reconstruct their sense of sight.
However electrical power supply to an internal device is limited. Therefore, it
is very important to study efficient electrical stimulation. In our study,
various pulse types were applied to the lateral geniculate nucleus (LGN) to
record the neural responses from the visual cortex (V1) of cats. Experimental
results revealed that the inversion of polarity of electric current pulse was
effective in electrical stimulation to the LGN.
