An AMPA receptor modulator; increases the mean open time of AMPA receptors which increases the amplitude of trisynaptic responses to presynaptic stimulation in rat hippocampal slices; accelerates acquisition of a conditioned fear response in rats from 10-50 mg/kg; enhances performance in a spatial DNMS test in rats; reverses dominance between the initially dominant and submissive rat pairs in the rat reduction of submissive behavior model,