Systems Biology (Methods in Molecular Biology)

(Tina Sui) #1
requires a careful analysis of the temperature effects and of the
probabilistic threshold for spontaneous spin flipping in the repro-
duction of brain areas activation dynamics, which is in due course
now in our lab.

-30


-20


-10


0

10

20

30

1 201 401 601 801 1001

1 201 401 601 801 1001

T = 5 (a.u.) ; WW

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-20

-10

0

10

20

30

T = 2.27 (a.u.) ; WW

Area3 Area9 Area15

Area3 Area9 Area15

Fig. 11MAS simulation of activity trends in brain areas by an Ising model—II. But for the much wider time
window, all other conditions are identical to those in Fig.10. Notice that 1000 a.u., namely machine time
units, correspond to about 35 s on a MacBook Pro equipped with 2.6 GHz Intel Core i7 processor


Table 1
Pearson correlation coefficient between numerical series of time-dependent activity in some brain
areas


T¼2.27 a.u. T¼5 a.u.

Area3 Area9 Area3 Area9
twindow¼50 a.u. Area9 0.34 0.28
Area15 0.45 0.43 0.37 0.12
twindow¼1000 a.u. Area9 0.91 0.15
Area15 0.92 0.94 0.12 0.12

Multi-agent Simulations of Population Behavior... 323
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