[Tactile recognition and cognitive tasks. Preliminary results].
In a basic experiment, a tactual recognition task was given to 28 normal blindfolded subjects. The subject were asked to explore the stimuli with the left or the right hand, and to choose out of 4 cavities the target form. Two cognitive concurrent tasks varied in terms of their verbal (left hemisphere) and non-verbal (right hemisphere) attributes were then given to other two groups of subjects (both of 24 Ss) performing the basic task. A consistent right hemisphere advantage was obtained in experiment I. For the non-verbal condition left hand performance was disrupted as well as for the concurrent verbal task condition. These findings were interpreted in terms of brain lateralisation of cognitive functions. For the "verbal" condition the results suggests that in case of a different task difficulties the normal mode of operation of the hemispheres is one of cooperative interaction, affecting, in this case, the hemisphere doing the processing.
D005260:Female; D007839:Functional Laterality; D006801:Humans; D008297:Male; D009043:Motor Activity / Q000502:physiology*; D014110:Touch / Q000502:physiology*
Riconoscimento tattile e compiti cognitivi. Datti preliminari.