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Proceedings Paper

Laser technique for anatomical-functional study of the medial prefrontal cortex of the brain
Author(s): Laura Sanchez-Huerta; Adan Hernandez; Griselda Ayala; Javier Marroquin; Adriana B. Silva; Konstantin S. Khotiaintsev; Vladimir A. Svirid; Gonzalo Flores; Sergei N. Khotiaintsev
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Paper Abstract

The brain represents one of the most complex systems that we know yet. In its study, non-destructive methods -- in particular, behavioral studies play an important role. By alteration of brain functioning (e.g. by pharmacological means) and observation of consequent behavior changes an important information on brain organization and functioning is obtained. For inducing local alterations, permanent brain lesions are employed. However, for correct results this technique has to be quasi-non-destructive, i.e. not to affect the normal brain function. Hence, the lesions should be very small, accurate and applied precisely over the structure (e.g. the brain nucleus) of interest. These specifications are difficult to meet with the existing techniques for brain lesions -- specifically, neurotoxical, mechanical and electrical means because they result in too extensive damage. In this paper, we present new laser technique for quasi-non- destructive anatomical-functional mapping in vivo of the medial prefrontal cortex (MPFC) of the rat. The technique is based on producing of small-size, well-controlled laser- induced lesions over some areas of the MPFC. The anesthetized animals are subjected to stereotactic surgery and certain points of the MPFC are exposed the confined radiation of the 10 W cw CO2 laser. Subsequent behavioral changes observed in neonatal and adult animals as well as histological data prove effectiveness of this technology for anatomical- functional studies of the brain by areas, and as a treatment method for some pathologies.

Paper Details

Date Published: 5 May 1999
PDF: 8 pages
Proc. SPIE 3687, International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, (5 May 1999); doi: 10.1117/12.347469
Show Author Affiliations
Laura Sanchez-Huerta, Puebla Autonomous Univ. (Mexico)
Adan Hernandez, Puebla Autonomous Univ. (Mexico)
Griselda Ayala, Puebla Autonomous Univ. (Mexico)
Javier Marroquin, Puebla Autonomous Univ. (Mexico)
Adriana B. Silva, Puebla Autonomous Univ. (Mexico)
Konstantin S. Khotiaintsev, Puebla Autonomous Univ. (Mexico)
Vladimir A. Svirid, Mexico National Autonomous Univ. (Mexico)
Gonzalo Flores, Puebla Autonomous Univ. (Mexico)
Sergei N. Khotiaintsev, Puebla Autonomous Univ. (Mexico)


Published in SPIE Proceedings Vol. 3687:
International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering
Alexander I. Melker, Editor(s)

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