Assuming that a pulse of excitation corresponds to the logical “true” state one can use a chemical medium for information processing and construct devices that execute the basic binary logical operations. Here we discuss direct chemical realizations of four argument logical functions equivalent to special types of McCulloch-Pitts neuron. We demonstrate that if a proper geometrical arrangement of excitable and nonexcitable areas is used then the construction of the considered devices can be much simpler than in the case where they are composed of chemical binary logical gates.

1.
I. N.
Motoike
and
K.
Yoshikawa
,
Phys. Rev. E
59
,
5354
(
1999
).
3.
T.
Ichino
,
Y.
Igarashi
,
I. N.
Motoike
, and
K.
Yoshikawa
,
J. Chem. Phys.
118
,
8185
(
2003
).
4.
S.
Nakata
,
Chemical Analysis Based on Nonlinearity
(
Nova Science
,
New York
,
2003
).
5.
I. N.
Motoike
and
A.
Adamatzky
,
Chaos, Solitons Fractals
34
,
107
(
2005
).
6.
A.
Toth
and
K.
Showalter
,
J. Chem. Phys.
103
,
2058
(
1995
).
7.
O.
Steinbock
,
P.
Kettunen
, and
K.
Showalter
,
J. Phys. Chem.
100
,
18970
(
1996
).
8.
K.
Agladze
,
R. R.
Aliev
,
T.
Yamaguchi
, and
K.
Yoshikawa
,
J. Phys. Chem.
100
,
13895
(
1996
).
9.
T.
Kusumi
,
T.
Yamaguchi
,
R. R.
Aliev
,
T.
Amemiya
,
T.
Ohmori
,
H.
Hashimoto
, and
K.
Yoshikawa
,
Chem. Phys. Lett.
271
,
355
(
1997
).
10.
I. N.
Motoike
,
K.
Yoshikawa
,
Y.
Iguchi
, and
S.
Nakata
,
Phys. Rev. E
63
,
036220
(
2001
).
11.
J.
Gorecki
,
K.
Yoshikawa
, and
Y.
Igarashi
,
J. Phys. Chem. A
107
,
1664
(
2003
).
12.
W. S.
McCulloch
and
W.
Pitts
,
Bull. Math. Biophys.
5
,
115
(
1943
).
13.
J.
Hertz
,
A.
Krogh
, and
R. G.
Palmer
,
Introduction to the Theory of Neural Computation
(
Addison-Wesley
,
Reading, MA
,
1991
).
14.
H.
Haken
,
Brain Dynamics
,
Springer Series in Synergetics
(
Springer-Verlag
,
Berlin
,
2002
).
15.
H.
Brandstadter
,
M.
Braune
,
I.
Schebesch
, and
H.
Engel
,
Chem. Phys. Lett.
323
,
145
(
2000
).
16.
S.
Kadar
,
J.
Wang
, and
K.
Showalter
,
Nature (London)
391
,
770
(
1998
).
17.
A.
Adamatzky
,
B.
De Lacy Costello
, and
T.
Asai
,
Reaction-Diffusion Computers
(
Elsevier
,
New York
,
2005
).
You do not currently have access to this content.