Information in the behavior stream.
The dynamic of a series of responses for four pigeons is analyzed using a discrete fast Fourier transform (FFT) and a measure of behavior's predictability. FFTs of moment-to-moment response rates reliably exhibited a continuous distribution for three of the four birds, with most of the power falling in the low frequencies-red noise. An information analysis of the predictability of a series of inter-response times (IRTs) reveals that there is some gain in prediction by knowing past behavior; moreover, predictability increases the more past behaviors are taken into account. However, the further into the future these predictions are extended, the less reliable they become-entropy. These findings suggest that the dynamic controlling behavior at the level of the individual response is, to some extent, deterministic and probably chaotic.
Horner
John M.
JM
Department of Psychology, The Colorado College, 14 East Cache la Poudre, 80903, Colorado Springs, CO, USA