Males show abnormal trap-entry with ethyl acetate as the stimulus. Homozygous females show normal trap-entry. Abnormal response to ethyl acetate and propionic acid, and a normal response to benzaldehyde in a chemosensory jump assay. ERG is normal. Giant fibre pathway physiology appears normals.
Males exhibit abnormal trap-entry kinetics with ethyl acetate as stimulant; not as subnormal (in these behavioral tests) as are the other ota genes. In odor-elicited jump tests with ethyl acetic or propionic acid as stimuli, however, ota5 shows the same degree of impairment as ota22 and like ota22, shows normal jump responses to benzaldehyde. ERG normal. Homozygous ota5 females behaved normally in the behavioral tests described.