  We demonstrated experimentally canard induced mixed mode oscillations (MMO)
in an excitable glow discharge plasma, and the results are validated through
numerical solution of the FitzHugh Nagumo (FHN) model. When glow discharge
plasma is perturbed by applying a magnetic field, it shows mixed mode
oscillatory activity, i.e., quasiperiodic small oscillations interposed with
large bounded limit cycles oscillations. The initial quasiperiodic oscillations
were observed to change into large amplitude limit cycle oscillations with
magnetic field, and the number of these oscillation increases with increase in
the magnetic field. Fourier analysis of both numerical and experimental results
show that the origin of these oscillations are canard-induced phenomena, which
occurs near the threshold of the control parameter. Further, the phase space
plots also confirm that the oscillations are basically canard-induced MMOs.
