Table 1.

ANCOVA Results for Differences in Fos Density in the Nucleus Accumbens Core and Shell by BER/BEP Phenotype and Stage of BE.

	M (SE)	F (df,df)	p	Partial eta squared
Nucleus Accumbens Core
Phenotype		F (1,21) = 20.06	<.001	.49
BER	23.43 (2.02)
BEP	37.29 (2.31)
Stage		F (1,21) = 1.28	.27	.06
Early	32.07 (2.11)
Chronic	28.65 (2.18)
Phenotype x Stage		F (1,21) = 3.24	.08	.13
BER Early	22.35 (2.52)
BEP Early	41.78 (3.38)
BER Chronic	24.50 (3.15)
BEP Chronic	32.79 (3.14)
Nucleus Accumbens Shell
Phenotype		F (1,22) = 7.81	.01	.26
BER	39.16 (3.59)
BEP	54.70 (4.19)
Stage		F (1,22) = 2.13	.14	.10
Early	51.09 (3.77)
Chronic	42.77 (3.98)
Phenotype x Stage		F (1,22) = 2.69	.10	.12
BER Early	38.57 (4.36)
BEP Early	63.62 (6.16)
BER Chronic	39.76 (5.76)
BEP Chronic	45.78 (5.70)

Note. ANCOVA models covaried 1-hour palatable food intake amounts prior to sacrifice. BER = binge eating resistant, BEP = binge eating prone. Partial eta squared (partial η²) values reflect effect sizes (i.e., standardized measure of the magnitude of mean differences between groups; effect size interpretation: small, partial η² = .01; medium, partial η² = .06; large, partial η² = .14). Sample sizes for nucleus accumbens core: early stage BER n = 9, early stage BEP n = 5, chronic stage BER n = 6, chronic stage BEP n = 6. Sample sizes for nucleus accumbens shell: early stage BER n = 10, early stage BEP n = 5, chronic stage BER n = 6, chronic stage BEP n = 6.