In this experiment, which included researchers from Belgium and Finland, 12 sighted and 12 blind participants agreed to perform a set of auditory or tactile tasks.
For sighted people, the transition from print to digital text has been relatively subtle, but for many blind people the shift to computerized speech is an unwelcome and uncharted experiment.
The experiment was double-blind-neither the subjects nor the scientists knew which liquid was which-a technique considered especially strong in research science.