TY  - JOUR
PY  - 1987//
TI  - Slow negative potential shifts indicating verbal cognitive learning in a concept formation task
JO  - Human neurobiology
A1  - Lang, M.
A1  - Lang, W.
A1  - Uhl, F.
A1  - Kornhuber, A.
A1  - Deecke, L.
A1  - Kornhuber, H. H.
SP  - 183
EP  - 190
VL  - 6
IS  - 3
N2  - It is well-known clinically that patients with left frontal lesions are impaired in their verbal-cognitive learning ability. Starting from such observations, it is of particular interest whether the event-related cerebral potential shifts recorded in healthy human subjects would indicate a left frontal lobe involvement in verbal-cognitive learning tasks. In a concept formation paradigm, subjects learned by trial and error to transform letters into Morse codes. This cognitive performance was accompanied by a slow negative potential shift (SP) that in frontal recordings was lateralized towards the left hemisphere. off results show in a later stage of learning, in which the experience of the preceding trial and error learning could be integrated, an increasing slow negativity over the frontal cortex. Ss also participated in a control task with already known letter/Morse code combinations. Again, a negative potential shift occurred within the stimulus-response interval, however, it was smaller in amplitude.<p /> <p>Language: en</p>
LA  - en
SN  - 0721-9075
UR  - http://dx.doi.org/
ID  - ref1
ER  -