  We explore the chaotic dynamics and complexity of a neuro-system with respect
to variable synaptic weights in both noise free and noisy conditions. The
chaotic dynamics of the system is investigated by bifurcation analysis and 0-1
test. A multiscale complexity of the system is proposed based on the notion of
recurrence plot density entropy. Numerical results support the proposed
analysis. Impact of music on the aforesaid neuro-system has also been studied.
The analysis shows that inclusion of white noise even with a minimal strength
makes the neuro dynamics more complex, where as music signal keeps the dynamics
almost similar to that of the original system. This is properly interpreted by
the proposed multiscale complexity measure.
