Table 2. Subjective State Questionnaire.

Subjective State Questionnaire (Joint Formulary Committee, 2009) revealed no differences in subjective state between groups. p-Value relates to independent sample t-test.

Subjective State Questionnaire	Before the task			After the task
	Placebo mean (SD)	L-DOPA mean (SD)	p-Value	Placebo mean (SD)	L-DOPA mean (SD)	p-Value
Alert to drowsy	2.68 (1.19)	2.62 (1.08)	0.687	3.60 (1.41)	3.85 (1.57)	0.208
Calm to excited	2.33 (1.11)	2.29 (1.03)	0.808	2.34 (1.09)	2.27 (1.22)	0.632
Strong to feeble	2.68 (1.01)	2.63 (1.01)	0.699	2.97 (1.13)	3.15 (1.35)	0.264
Muzzy to clear headed	4.47 (1.26)	4.48 (1.11)	0.956	3.70 (1.23)	3.41 (1.39)	0.099
Coordinated to clumsy	2.28 (1.14)	2.22 (1.06)	0.722	2.80 (1.16)	3.02 (1.31)	0.187
Lethargic to energetic	3.89 (1.14)	3.94 (1.18)	0.736	3.20 (1.24)	3.00 (1.43)	0.263
Contented to discontented	2.18 (1.01)	2.12 (0.83)	0.620	2.58 (1.16)	2.65 (1.19)	0.644
Troubled to tranquil	4.83 (1.02)	4.66 (1.02)	0.201	4.52 (1.13)	4.55 (1.13)	0.858
Slow to quick witted	4.32 (1.11)	4.28 (1.04)	0.761	3.63 (1.30)	3.31 (1.30)	0.069
Tense to relaxed	4.64 (1.11)	4.67 (0.98)	0.803	4.47 (1.14)	4.42 (1.23)	0.733
Attentive to dreamy	2.78 (1.26)	2.73 (1.10)	0.740	3.47 (1.34)	3.42 (1.38)	0.804
Incompetent to proficient	4.56 (0.98)	4.70 (0.86)	0.260	4.14 (1.16)	4.02 (1.26)	0.450
Happy to sad	2.43 (1.06)	2.34 (0.84)	0.453	2.62 (1.12)	2.57 (0.95)	0.712
Antagonistic to friendly	5.08 (0.97)	5.07 (0.81)	0.942	4.65 (0.95)	4.60 (1.04)	0.703
Interested to bored	2.35 (1.21)	2.28 (1.02)	0.639	3.52 (1.45)	3.63 (1.50)	0.587
Withdrawn to sociable	4.34 (1.17)	4.36 (1.18)	0.868	3.90 (1.17)	3.83 (1.39)	0.672