1. Mentally handicapped children's responses to vibro-tactile and other sensory stimuli as evidence for the existence of a sensory hierarchy.;Byrne;Apex, J. Brit. Inst. Ment. Hand.,1980
2. Getting through to the handicapped child.;Campbell;World Medicine,1972
3. Effects of frequency of photic stimulation upon autistic and retarded children.;Frankel;Amer. J. Ment. Defic.,1976
4. Vibration and praise as reinforcers for mentally handicapped people.;Johnson;Ment. Ret.,1978