The influence of psychological and cognitive states on error-related negativity evoked during post-stroke rehabilitation movements

Table 1 All statements of adapted version of intrinsic motivation inventory questionnaire (Ryan et al. [25])

Item	Statement	Factor
1	I enjoyed doing this activity very much	I
2	I put my maximum effort to maintain the accuracy and complete the exercise within time	E
3	I did not feel nervous at all while doing this activity	P^a
4	I think this was a boring activity	I^a
5	I tried very hard to complete the exercises on time	E
6	I was very relaxed while doing this activity	P^a
7	I would describe this activity as very interesting	I
8	It was important to me to do well at this task	E
9	This activity was fun to do	I
10	I felt very uneasy while doing this activity	P
11	I did not put much energy into this task	E^a
12	I thought this activity was quite enjoyable	I
13	This activity did not hold my attention at all	I^a
14	I was anxious while working on this activity	P
15	I did not try very hard to do well at this activity	E^a
16	I felt like I was enjoying the activity while I was doing it	I
17	I felt pressured while doing these	P

The Factor column describes to which subscale the respective statement belongs to, I = interest/enjoyment, E = perceived effort/importance, P = perceived pressure/tension
^aScores of these statements were subtracted from 8, before being used for taking an average

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