1. Employment and Student Support Network, Royal National Institute for the Blind, Center for Sensory Impaired People, 17 Gullane Street, Glasgow G11 6AH, Scotland, United Kingdom
2. Department of Psychology, University of Glasgow, Adam Smith Building, Glasgow G12 8RT, Scotland, United Kingdom
3. Department of Psychology, University of Glasgow, Adam Smith Building, Glasgow G12 8RT, Scotland, United Kingdom.