Table 2.

Cohort.

Gender	n	Average age (range)	Handedness (-100 = L, +100 = R)	Years of education
Female	101	29.6 (22–35)	76.5	15.1
Male	96	27.4 (22–36)	60.3	14.9
Total	197	28.5 (22–36)	68.6	15.0

Gender, average age education and handedness of participant. Note that handedness was measured using the Edinburgh Handedness questionnaire (Oldfield, 1971). Negative numbers indicate that a subject is more left-handed than right-handed, while positive numbers indicate that a subject is more right-handed than left-handed.