1. Hebb, D. O. The Organization of Behavior. A Neuropsychological Theory (Wiley, New York, (1949)).
2. Gustafsson, B., Wigström, H., Abraham, W. C. & Huang, Y.-Y. Long-term potentiation in the hippocampus using depolarizing current pulses as the conditioning stimulus to single volley synaptic potentials. J. Neurosci. 7, 774–780 (1987).
3. Bonhoeffer, T., Staiger, V. & Aertsen, A. Synaptic plasticity in rat hippocampal slice cultures: local “Hebbian” conjunction of pre- and postsynaptic stimulation leads to distributed synaptic enhancement. Proc. Nat Acad. Sci. USA 86, 8113–8117 (1989).
4. Kossel, A., Bonhoeffer, T. & Bolz, J. Non-Hebbian synapses in rat visual cortex. NeuroReport 1, 115–118 (1990).
5. Schuman, E. M. & Madison, D. V. Locally distributed synaptic potentiation in the hippocampus. Science 263, 532–536 (1994).