Aphasia test results
| T0 | T1 | T2 | T3 | Δ(T1–T0) | Δ(T2–T1) | Δ(T3–T2) | Δ(T3–T1) | |
| Mean AAT scores | ||||||||
| Group I (CI) | 49.7 (3.7) | 50.3 (4.1) | 51.9 (4.3) | 52.7 (4.7) | 0.6 (0.8) | 1.6*** (0.6) | 0.8 (0.8) | 2.4** (1.2) |
| Group II (CI) | 51.2 (4.5) | 51.2 (4.3) | 53.0 (4.7) | 53.4 (4.8) | 0.0 (0.6) | 1.8*** (0.6) | 0.4 (0.6) | 2.2*** (0.8) |
| Both groups (CI) | 50.5 (2.9) | 50.7 (3.0) | 52.5 (3.1) | 53.1 (3.3) | 0.3 (0.5) | 1.7*** (0.4) | 0.6* (0.5) | 2.3*** (0.7) |
| Mean ACT scores | ||||||||
| Group I (CI) | 49.1 (4.7) | 49.2 (4.8) | 50.6 (5.0) | 50.2 (4.9) | 0.1 (0.3) | 1.4** (0.9) | −0.4 (0.5) | 1.0 (1.0) |
| Group II (CI) | 50.9 (5.5) | 51.1 (5.8) | 53.4 (5.9) | 54.0 (5.6) | 0.2 (0.7) | 2.3*** (0.9) | 0.6* (0.5) | 2.9*** (1.2) |
| Both groups (CI) | 50.0 (3.6) | 50.2 (3.7) | 52.0 (3.8) | 52.1 (3.7) | 0.2 (0.4) | 1.8*** (0.7) | 0.1 (0.4) | 1.9*** (0.8) |
Mean t-scores obtained on the Aachen Aphasia Test (AAT)9 and on the Action Communication Test (ACT).16 Thirty individuals with chronic post-stroke aphasia were randomly assigned to one of two treatment groups: patients receiving Intensive Language-Action Therapy with 4 hours (Group I) or with 2 hours of daily practice (Group II). Both treatment groups went through an initial waiting period and two successive training intervals. Each phase lasted 2 weeks. Patients were tested at four points in time: 2 weeks before treatment onset (T0), at treatment onset (T1), after the first training interval (T2) and after the second training interval (T3). Asterisks refer to significant paired-sample t-tests (*P<0.05, **P<0.01, ***P<0.001) assessing changes in language performance separately for each time interval [Δ(T1–T0); Δ(T2–T1); Δ(T3–T2)] and across the entire therapy phase [Δ(T3–T1)].