1. School of Behavioural Sciences, University of Newcastle, NSW, Australia
2. Department of Paediatrics and Child Health, New Lambton, NSW, Australia
3. Chaos and Biology Group, Instituto de Calculo, Universidad de Buenos Aires, (1428) Capital Federal, Argentina
4. School of Mathematical and Physical Sciences, University of Newcastle, NSW, Australia
5. School of Biomedical Sciences, University of Newcastle, NSW, Australia
6. Department of Neurology, New Lambton, NSW, Australia
7. John Hunter Hospital, New Lambton, NSW, Australia
8. School of Electrical Engineering and Computer Science, University of Newcastle, NSW, Australia