Table 2.

Demographic and Clinical Information (means & standard deviations)

	Group 1 (average performance; n= 20)	Group 2 (impaired performance; n= 9)	Group 3 (above average performance; n= 15)
Age	60.10 (12.02)	62.22 (8.39)	58.13 (5.43)
Education	14.25 (2.86)	14.00 (2.00)	14.80 (2.42)
MMSE	26.85 (2.90)	25.88 (2.84)	28.13 (1.64)
Illness Duration	102.13 (113.59)	56.50 (44.94)	41.53 (22.82)
Ashworth Scale	12.69 (8.75)	14.00 (5.44)	15.12 (9.80)
ALSFRS-R Scale	37.00 (7.12)	31.57 (8.75)	33.62 (7.85)
Upper Motor Signs (bulbar involvement)	11.28 (9.53)	15.50 (7.40)	14.25 (10.59)

Notes: MMSE= Mimi-Mental State Examination; ALSFRS-R= The ALS Functional Rating Scale-Revised