Language | UK English |
Inclusion criteria | MCA; mild-moderate non-fluent aphasia; no severe comprehension deficit |
Number of individuals with aphasia | 6 (plus 6 excluded: 4 for health risks; 2 for technical problems and data loss) |
Number of control participants | 0 |
Were any of the participants included in any previous studies? | No |
Is age reported for patients and controls, and matched? | Yes (range 41-76 years) |
Is sex reported for patients and controls, and matched? | Yes (males: 5; females: 1) |
Is handedness reported for patients and controls, and matched? | Yes (right: 6; left: 0) |
Is time post stroke onset reported and appropriate to the study design? | Yes (range 17-234 months (including excluded patients)) |
To what extent is the nature of aphasia characterized? | Severity only |
Language evaluation | BDAE, TT |
Aphasia severity | Mild-moderate; T1: TT range 15-49 errors (including 2 excluded patients) |
Aphasia type | Not stated |
First stroke only? | Yes |
Stroke type | Mixed etiologies |
To what extent is the lesion distribution characterized? | Lesion overlay |
Lesion extent | Not stated |
Lesion location | L MCA |
Participants notes | Patient numbers in tables 1 and 2 appear not to correspond with patient numbers later in the paper |
Modality | fMRI |
Is the study cross-sectional or longitudinal? | Longitudinal—chronic treatment |
If longitudinal, at what time point(s) were imaging data acquired? | T1: pre-treatment/chronic; T2: post-treatment, ~2 weeks later |
If longitudinal, was there any intervention between the time points? | CIAT, 3-4 hours/day, 5 days/week, 2 weeks |
Is the scanner described? | Yes (Siemens Trio 3 Tesla) |
Is the timing of stimulus presentation and image acquisition clearly described and appropriate? | Yes |
Design type | Event-related |
Total images acquired | 76 |
Are the imaging acquisition parameters, including coverage, adequately described and appropriate? | Yes (whole brain) |
Is preprocessing and intrasubject coregistration adequately described and appropriate? | Yes |
Is first level model fitting adequately described and appropriate? | Yes |
Is intersubject normalization adequately described and appropriate? | No (lesion impact not addressed) |
Imaging notes | sparse sampling |
Language condition | Listening to sentences (high and low ambiguity) |
Control condition | Listening to signal-correlated noise |
Are the conditions matched for visual demands? | Yes |
Are the conditions matched for auditory demands? | Yes |
Are the conditions matched for motor demands? | Yes |
Are the conditions matched for cognitive/executive demands? | Yes |
Is accuracy matched between the language and control tasks for all relevant groups? | N/A, no behavioral measure |
Is reaction time matched between the language and control tasks for all relevant groups? | N/A, no timeable task |
Behavioral data notes | — |
Are control data reported in this paper or another that is referenced? | No |
Does the contrast selectively activate plausible relevant language regions in the control group? | Unknown |
Are activations lateralized in the control data? | Unknown |
Control activation notes | Some control data in Rodd et al. (2005), but half of the participants were performing a probe judgment task, unlike in the present study |
Contrast notes | — |
Language condition | Listening to high ambiguity sentences |
Control condition | Listening to low ambiguity sentences |
Are the conditions matched for visual demands? | Yes |
Are the conditions matched for auditory demands? | Yes |
Are the conditions matched for motor demands? | Yes |
Are the conditions matched for cognitive/executive demands? | Yes |
Is accuracy matched between the language and control tasks for all relevant groups? | N/A, no behavioral measure |
Is reaction time matched between the language and control tasks for all relevant groups? | N/A, no timeable task |
Behavioral data notes | — |
Are control data reported in this paper or another that is referenced? | No |
Does the contrast selectively activate plausible relevant language regions in the control group? | Unknown |
Are activations lateralized in the control data? | Unknown |
Control activation notes | Some control data in Rodd et al. (2005), but half of the participants were performing a probe judgment task, unlike in the present study |
Contrast notes | — |
First level contrast | Listening to sentences (high and low ambiguity) vs listening to signal-correlated noise |
Analysis class | Longitudinal change in aphasia |
Group(s) | Aphasia T2 vs T1 |
Covariate | — |
Is the second level contrast valid in terms of the group(s), time point(s), and measures involved? | Yes |
Is accuracy matched across the second level contrast? | N/A, no behavioral measure |
Is reaction time matched across the second level contrast? | N/A, no timeable task |
Behavioral data notes | — |
Type of analysis | Voxelwise |
Search volume | Whole brain |
Correction for multiple comparisons | No direct comparison |
Software | SPM8 |
Voxelwise p | — |
Cluster extent | — |
Statistical details | Qualitative generalization across individuals on pp. 8-9 |
Findings | None |
Findings notes | — |
First level contrast | Listening to high ambiguity sentences vs listening to low ambiguity sentences |
Analysis class | Longitudinal change in aphasia |
Group(s) | Aphasia T2 vs T1 |
Covariate | — |
Is the second level contrast valid in terms of the group(s), time point(s), and measures involved? | Yes |
Is accuracy matched across the second level contrast? | N/A, no behavioral measure |
Is reaction time matched across the second level contrast? | N/A, no timeable task |
Behavioral data notes | — |
Type of analysis | Regions of interest (ROI) |
ROI type | Functional |
How many ROIs are there? | 4 |
What are the ROI(s)? | (1) L IFG; (2) R IFG; (3) L ITG; (4) R ITG; the temporal ROIs are described as STG but they seem to be in the ITG |
How are the ROI(s) defined? | Defined based on control data from Rodd et al. (2005) but the coordinates do not match so it is not clear exactly how they were defined |
Correction for multiple comparisons | No correction |
Statistical details | ANOVA of timepoint by hemisphere by site, with a significant interaction of timepoint by hemisphere |
Findings | ↑ R IFG ↑ R posterior inferior temporal gyrus/fusiform gyrus |
Findings notes | All signal changes were negative (i.e. less activation for ambiguous sentences), making interpretation challenging |