FUNCTIONAL HEMISPHERIC SPECIALIZATION FOR TWO LEVELS OF LINGUISTIC INFORMATION PROCESSING: VISUAL IDENTITY

Objective: To continue deepening in the lateralitation of tasks of physical identity (PI) with alphabetical content andof categorization of verbal stimuli of concrete and abstract content.Method: we Use 48 adults, with understood ages between 18 and 24 years. All the fellows carried out Tests of SpeedManual, it Forces Motorboat Manual, Attention and Perception, Verbal Intellectual Quotient and Questionnaires ofAnxiety and of Lateral Preference; and two experiments. The dependent variable were cheats of reaction (TR) andaccuracy of the answer: successes, errors for confusion of visual field and of identity of stimulus, and omissions. Theywere carried out two experiments of presentation lateralized, one with stimuli of different same physical identity, andthe other one with stimuli of identity categorial with two conditions: Abstract and I sum up.Results: Our results are in the line of the current conception of functional asymmetry of grade phenomenon and notof everything or anything. In tasks of IF he/she was an advantage of the left visual field. right hemisphere (LVF -RH) on the field visual right. left hemisphere (RVF - LH) in analysis visoespaciales of alphabetical stimuli, with anadvantage in the resolution of simple tasks of physical identity (IF). In tasks of categorization of verbal content theparticipation of the two hemispheres settles down in these tasks, so much in the times of reaction (TR) like in theaccuracy of the answer. A proportional relationship was observed among TR and alone under some conditions of theaccuracy of the answer for concrete stimuli (CS) as abstract stimuli (AE). He/she was also correlation between TR andaccuracy of the answer in verbal categorization tasks of presentation lateralitation with tasks of manual speed, of forcemotorboat, and of perception and attention, of verbal intelligence and of anxiety.