Table 1.

Demographics and Psychophysics

	Mean (SD)
Demographics	Young Adults	Middle Aged Adults	F	Significance
Height (cm)	174.4(12.68)	169.77(7.95)	1.15	p = .29
Weight (kg)	71.67(14.29)	72.79(10.64)	.048	p = .83
BMI	23.00 (2.66)	25.00(2.63)	3.43	p = .08
Waist Circumference	82.67(9.86)	90.67(13.87)	2.65	p = .12
TFEQ - Restraint	8.92 (4.83)	9.67(5.55)	.125	p = .73
Odor threshold L	7.21(1.60)	6.17(1.70)	2.59	p = .12
Odor threshold R	6.25(1.71)	7.08(2.11)	1.13	p = .30
Taste threshold	.005 (.008)	.009(.02)	.49	p = .49
Hunger	34.08(22.30)	32.33(26.102)	.031	p = .83
Fast duration	14.57(2.48)	14.64(1.97)	.004	p = .95

Greater activation during hedonic evaluation of sweet than bitter in young Similar activation during hedonic evaluation of sweet and bitter in middle aged Activation in middle-aged less than young during hedonic evaluation of sucrose Activation in middle-aged less in sensory-motor and reward areas Middle-age changes in CNS processing of taste: possible implications for weight gain