Table 2. P300-like potentials: latency of P300-like potentials recorded from all contacts from the hippocampus versus all contacts from the ANT, mean and standard deviation.

Structure	Hippocampus Latency (ms)	Diff	ANT Latency (ms)
Visual encoding	285±20	NS	240±60
Visual recognition	NP: 322±4	***	NP: 278±14
	OP: 321±4	***	OP: 273±7
Diff NP vs. OP	NS		*
Verbal encoding	376±34	***	No significant potential
Verbal recognition	NW: 376±25	***	NW: 274±32
	OW: 378±17	***	OW: 253±31
Diff NW vs. OW	NS		**

OP/ OW: old picture/ word, NP/NW: new picture/word.

Statistical significance of differences between Hippocampus and ANT is in column Diff. Statistical significance of differences between the old and new pictures/words is in line of Diff NP vs. OP or Diff NW vs. OW. Significance of differences

P<0.001 ***

P<0.01 **

P<0.05 *

NS: non-significant.