PPT Slide
Further information
web site
www.essex.ac.uk/psychology/overlays
e-mail
arnold@essex.ac.uk
avrils@essex.ac.uk
Patients’ helpline
01206 872130
Video for teachers
Declaration of interest: the Medical Research Council owns the rights to the overlays and colorimeter. The author receives an ‘award to inventors’ from the MRC.
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