Table 1.

Comparisons of selectivity in LMAN and X

Selectivity categoryLMANX
BOS > tutor31/56  (55%)19/49  (39%)
BOS > adult conspecific*36/47  (77%)24/47  (51%)
BOS > juvenile conspecific17/30  (57%)17/34  (50%)
BOS > heterospecific*43/51  (84%)31/47  (66%)
BOS > reverse BOS34/47  (72%)30/41  (73%)
BOS > reverse order BOS15/37  (41%)15/32  (47%)
Tutor > BOS*6/56  (11%)14/49  (29%)
Tutor > adult conspecific20/41  (49%)26/48  (54%)
Tutor > heterospecific24/42  (57%)33/51  (65%)
Tutor > reverse tutor16/37  (43%)25/45  (56%)
Tutor > reverse order tutor*5/21  (24%)19/37  (51%)
  • The ratio of selective cells to the total tested in each category is shown for LMAN and X, followed by the percentages. Cells were considered selective if the d′ value for the two stimuli compared was ≥0.5.

  • * Comparisons for which the frequency of occurrence of selective cells was significantly different between LMAN and X neurons (χ2 tests; χ2 = 6.64 for BOS > adult conspecific; p < 0.0101; χ2 = 4.457 for BOS > heterospecific; p < 0.0349; χ2 = 5.404 for tutor > BOS; p < 0.0202; χ2 = 4.189 for tutor > reverse order tutor;p < 0.0408).