  We observe the occurrence of a strange nonchaotic attractor in a periodically
driven two-dimensional map, formerly proposed as a neuron model and a sequence
generator. We characterize this attractor through the study of the Lyapunov
exponents, fractal dimension, autocorrelation function and power spectrum. The
strange nonchaotic attractor in this model is a typical behavior, occupying a
finite range of the parameter space.
