Attention Deficits in Stroke Patients: The Role of Lesion Characteristics, Time from Stroke, and Concomitant Neuropsychological Deficits

Table 4

Percentage of patients showing pathological performance (i.e., a normalized score at or below the fifth percentile according to normative data; [39]) as a function of lesion site and presence of neglect (N⁺ = presence and N⁻ = absence) or aphasia (Aphasia⁺ = presence and Aphasia⁻ = absence). Values indicate percentages of pathological patients for each group and attention measure. Chi-square tests were computed on raw data (i.e., the number of patients with pathological performance for each sample).

	Patients with RHL			Patients with LHL
	N^+ ()	N^- ()		Aphasia^+ ()	Aphasia^- ()
Alertness without warning (RTs)	74%	46%	6.93	34%	20%	0.84
Alertness with warning (RTs)	71%	49%	6.38°	34%	10%	3.29^#
Go-No Go (RTs)	67%	38%	7.30	57%	10%	12.06
Go-No Go (false responses)	41%	39%	0.02	44%	33%	0.54
Divided Attention (RTs)	51%	34%	2.33	42%	33%	0.14
Divided Attention (omissions)	97%	79%	4.43^°	57%	45%	0.50

, ^°, , and .