referring to the individual's conscious decision-making ability

a form of movement or action that is intentional and voluntary

इच्छाशक्ति

English Usage: She exhibited a volitional tremor during the presentation, indicating her nervousness.

Hindi Usage: प्रस्तुति के दौरान उसने इच्छा-शक्ति का कंपन प्रदर्शित किया, जो उसकी घबराहट को दर्शाता है।