Affiliation: | 1. Department of Zoology, University of Stellenbosch, Stellenbosch;2. Logistics Division (Section Environmental Services), South African Defence Force, Pretoria;3. Department of Physiology, University of the Witwatersrand Medical School, Johannesburg;4. Zoology Department, University of Cape Town, Cape Town;5. Department of Zoology, University of Cape Town, Cape Town;6. Brain Function Research Unit, Department of Medical Physiology, University of the Witwatersrand, Johannesburg |