Differential Induction of Long-Term Potentiation in the Horizontal versus Columnar Superficial Connections to Layer II Cells of the Entorhinal Cortex
Figure 2
Afferent independence between the
ascending columnar and horizontal associational pathways. The two pathways were
stimulated repetitively (left panels) or alternatively (right panels) using a short
interpulse interval (60 milliseconds). Each trace represents an average of 16
sweeps. Although paired-pulse facilitation (PPF) was observed in both (a) the ascending and (b) horizontal pathways when stimulated
independently (right panels), no facilitation was observed when stimulating
each alternatively (left panels). Dotted lines indicate the maximum amplitude
to the first pulse in each case.
