Asymmetries of Sensory Functions (Spatial and Temporal Discrimination) in Normal Persons
H. H. Fleischhacker, M.D., Pathologist
Shenley Hospital, Herts
ABSTRACT
Summary and Conclusion:
Spatial discrimination has been examined in 25 normal persons.In 18 of them it was better on the right hand. The other 7 personsadmitted left handedness or ambidextrous tendencies.
Auraldiscrimination of time was tested separately on each ear,in40 normal persons. There were three groups:
Essentially anatomicaldextero-laterals(23), with temporal discriminationbetter throughthe left ear.
Essentially anatomically sinistro-laterals (9),with temporaldiscrimination better through the right ear.
Mostlikely ambilaterals (8), with no outspoken differencesbetweenright and left.
Clinical, pathological and physiologicalexperiences show thatthe left hemisphere in right-handed personscannot be consideredany longer as "dominant" for all nervousfunctions, and if wespeak of hemispheric dominance we haveto specify the functionconcerned.