@article{ref1,
title="Slow negative potential shifts indicating verbal cognitive learning in a concept formation task",
journal="Human neurobiology",
year="1987",
author="Lang, M. and Lang, W. and Uhl, F. and Kornhuber, A. and Deecke, L. and Kornhuber, H. H.",
volume="6",
number="3",
pages="183-190",
abstract="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>",
language="en",
issn="0721-9075",
doi="",
url="http://dx.doi.org/"
}