Neural Circuits on a Chip

Autor: Md. Fayad Hasan, Yevgeny Berdichevsky
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Micromachines, Vol 7, Iss 9, p 157 (2016)
Druh dokumentu: article
ISSN: 2072-666X
DOI: 10.3390/mi7090157
Popis: Neural circuits are responsible for the brain’s ability to process and store information. Reductionist approaches to understanding the brain include isolation of individual neurons for detailed characterization. When maintained in vitro for several days or weeks, dissociated neurons self-assemble into randomly connected networks that produce synchronized activity and are capable of learning. This review focuses on efforts to control neuronal connectivity in vitro and construct living neural circuits of increasing complexity and precision. Microfabrication-based methods have been developed to guide network self-assembly, accomplishing control over in vitro circuit size and connectivity. The ability to control neural connectivity and synchronized activity led to the implementation of logic functions using living neurons. Techniques to construct and control three-dimensional circuits have also been established. Advances in multiple electrode arrays as well as genetically encoded, optical activity sensors and transducers enabled highly specific interfaces to circuits composed of thousands of neurons. Further advances in on-chip neural circuits may lead to better understanding of the brain.
Databáze: Directory of Open Access Journals