Table 1. Demographics.

Demographics	Placebo mean (SD)	L-DOPA mean (SD)	p-Value
Age (years)	24.36 (7.91)	25.44 (7.92)	0.301
Gender	Females N= 72	Females N= 71	0.893
Income (1-9)	4.85 (2.38)	4.61 (2.54)	0.462
Education Level (1-10)	7.09 (1.72)	7.39 (1.50)	0.157

There were no differences between groups in terms of demographics. p-Value is of independent sample t-test , or in the case of gender of X². Education was measured on a scale ranging from 1 (no formal education) to 10 (Doctoral degree ). Annual household income was measured on a scale from 1 (less than 10K) to 10 (more than 100K).