The question “How does it work?” is the motivation of many physicists. Condensed matter physics, chemical physics and nuclear physics can all be thought of as descriptions of the relation between structure and properties. The components of a biological system have functional properties that are particularly relevant to the operation of the system. Thus it is especially important in biology to understand the relation between structure and function. Such understanding can be sought at the level of the molecule, the cell, the organ, the organism or the social group.
REFERENCES
1.
J. J. Hopfield, in Evolutionary Trends in the Physical Sciences, M. Suzuki, R. Kubo, eds., Springer‐Verlag, New York (1991), p. 295.
2.
E. R. Kandel, J. H. Schwartz, Principles of Neural Science, 3rd ed., Appleton & Lange, Norwalk, Conn. (1991), p. 19.
3.
D. Junge, Nerve and Muscle Excitation, Sinauer, Sunderland, Mass. (1981), p. 115, discusses some of the complications of the biophysics of this process.
4.
J. Hertz, A. Krogh, R. G. Palmer, Introduction to the Theory of Neural Computation, Addison Wesley, Redwood City, Calif. (1991), p. 16.
5.
M. F.
Bear
, L. N.
Cooper
, F. F.
Ebner
, Science
237
, 42
(1987
).6.
See, for example, G. Dreyfus, in Applications of Neural Networks, H. G. Schuster, ed., VCH, New York (1992), p. 35.
7.
While these equations are in common use, they have evolved somewhat, and do not have a sharp original reference. See, however,
H. R.
Wilson
, J. D.
Cowan
, Biophys. J.
12
, 1
(1972
);8.
J. J.
Hopfield
, 81
, 3088
(1984
)., Proc. Natl. Acad. Sci. U.S.A.
9.
E. Domany, J. L. van Hemmen, K. Schulten, eds., Models of Neural Networks, Springer‐Verlag, New York (1991).
10.
Y. Takefuji, Neural Network Parallel Computing Kluwer Boston (1992).
11.
W. J. Freeman, Sci. Am., February 1991, p. 78.
12.
R.
Eckhorn
, R.
Bauer
, W.
Jordan
, M.
Brosch
, W.
Kruse
, M.
Munk
, H. J.
Reitboeck
, Biol. Cybern.
60
, 121
(1988
).13.
14.
15.
M.
Tsodyks
, I.
Mitkov
, H.
Sompolinsky
, Phys. Rev. Lett.
71
, 1280
(1993
).16.
17.
Z.
Olami
, H. J. S.
Feder
, K.
Christensen
, Phys. Rev. Lett.
68
, 1244
(1992
).18.
This content is only available via PDF.
© 1994 American Institute of Physics.
1994
American Institute of Physics
You do not currently have access to this content.