Table 4. Effects of fluorene on spontaneous alternation performances assessed in the Y-maze.

Variable	Restrained Controls	1.5 ppb	150 ppb	ANOVA
				F(2, 35)	p
% Spontaneous alternation	66.7±2.4	65.3±1.7	59.5±3.8	1.762	n.s.
Total arm entries	32.6±1.6	35.8±1.3	32.5±1.9	1.264	n.s.
Number of arms visited/min	3.3±0.2	3.6±0.1	3.3±0.2	1.264	n.s.
Number of arm entries (1st min)	5.1±0.3	5.5±0.3	5.4±0.2	0.389	n.s.

Results are expressed as mean ± S.E.M. of n = 12 rats/group. Abbreviations: n.s., not significant.