Language | US English |
Inclusion criteria | — |
Number of individuals with aphasia | 11 |
Number of control participants | 10 |
Were any of the participants included in any previous studies? | No |
Is age reported for patients and controls, and matched? | Yes (mean 58.8 ± 14.7 years, range 33-78 years) |
Is sex reported for patients and controls, and matched? | Yes (males: 6; females: 5) |
Is handedness reported for patients and controls, and matched? | No |
Is time post stroke onset reported and appropriate to the study design? | Yes (range 10-101 months) |
To what extent is the nature of aphasia characterized? | Comprehensive battery |
Language evaluation | WAB; BNT |
Aphasia severity | AQ range 31.8-91.5 |
Aphasia type | 6 anomic, 4 Broca's, 1 transcortical motor; alternatively: 6 fluent, 5 non-fluent |
First stroke only? | Not stated |
Stroke type | Not stated |
To what extent is the lesion distribution characterized? | Lesion overlay |
Lesion extent | Range 3.0-342.2 cc |
Lesion location | L MCA |
Participants notes | — |
Modality | fMRI |
Is the study cross-sectional or longitudinal? | Cross-sectional |
If longitudinal, at what time point(s) were imaging data acquired? | — |
If longitudinal, was there any intervention between the time points? | — |
Is the scanner described? | No (not stated) |
Is the timing of stimulus presentation and image acquisition clearly described and appropriate? | No (timing of picture presentation not clearly explained) |
Design type | Event-related |
Total images acquired | 120 |
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? | Yes |
Imaging notes | sparse sampling |
Language condition | Picture naming (correct trials) |
Control condition | Viewing scrambled images |
Are the conditions matched for visual demands? | Yes |
Are the conditions matched for auditory demands? | No |
Are the conditions matched for motor demands? | No |
Are the conditions matched for cognitive/executive demands? | No |
Is accuracy matched between the language and control tasks for all relevant groups? | N/A, tasks not comparable |
Is reaction time matched between the language and control tasks for all relevant groups? | N/A, tasks not comparable |
Behavioral data notes | — |
Are control data reported in this paper or another that is referenced? | Somewhat |
Does the contrast selectively activate plausible relevant language regions in the control group? | No |
Are activations lateralized in the control data? | Somewhat |
Control activation notes | Control data in Fridriksson et al. (2007); motor activations are prominent; there is some L frontal activation but little temporal activation in either hemisphere |
Contrast notes | — |
Language condition | Picture naming (phonemic paraphasias) |
Control condition | Picture naming (correct trials) |
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? | No, by design |
Is reaction time matched between the language and control tasks for all relevant groups? | Unknown, not reported |
Behavioral data notes | — |
Are control data reported in this paper or another that is referenced? | N/A |
Does the contrast selectively activate plausible relevant language regions in the control group? | N/A |
Are activations lateralized in the control data? | N/A |
Control activation notes | Control data N/A because controls do not typically make errors |
Contrast notes | — |
Language condition | Picture naming (semantic paraphasias) |
Control condition | Picture naming (correct trials) |
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? | No, by design |
Is reaction time matched between the language and control tasks for all relevant groups? | Unknown, not reported |
Behavioral data notes | — |
Are control data reported in this paper or another that is referenced? | N/A |
Does the contrast selectively activate plausible relevant language regions in the control group? | N/A |
Are activations lateralized in the control data? | N/A |
Control activation notes | Control data N/A because controls do not typically make errors |
Contrast notes | — |
First level contrast | Picture naming (correct trials) vs viewing scrambled images |
Analysis class | Cross-sectional aphasia vs control |
Group(s) | Aphasia vs control |
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? | Yes, correct trials only |
Is reaction time matched across the second level contrast? | Unknown, not reported |
Behavioral data notes | — |
Type of analysis | Voxelwise |
Search volume | Voxels spared in all patients |
Correction for multiple comparisons | Clusterwise correction with with GRFT and lenient voxelwise p |
Software | FSL (FEAT 5.4) |
Voxelwise p | ~.01 (z > 2.3) |
Cluster extent | Based on GRFT |
Statistical details | — |
Findings | None |
Findings notes | — |
First level contrast | Picture naming (phonemic paraphasias) vs picture naming (correct trials) |
Analysis class | Cross-sectional performance-defined conditions |
Group(s) | Aphasia |
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? | No, by design |
Is reaction time matched across the second level contrast? | Unknown, not reported |
Behavioral data notes | — |
Type of analysis | Voxelwise |
Search volume | Voxels spared in all patients |
Correction for multiple comparisons | Clusterwise correction with with GRFT and lenient voxelwise p |
Software | FSL (FEAT 5.4) |
Voxelwise p | ~.01 (z > 2.3) |
Cluster extent | Based on GRFT |
Statistical details | — |
Findings | ↑ L superior parietal ↑ L posterior inferior temporal gyrus/fusiform gyrus ↑ L occipital |
Findings notes | — |
First level contrast | Picture naming (semantic paraphasias) vs picture naming (correct trials) |
Analysis class | Cross-sectional performance-defined conditions |
Group(s) | Aphasia |
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? | No, by design |
Is reaction time matched across the second level contrast? | Unknown, not reported |
Behavioral data notes | — |
Type of analysis | Voxelwise |
Search volume | Voxels spared in all patients |
Correction for multiple comparisons | Clusterwise correction with with GRFT and lenient voxelwise p |
Software | FSL (FEAT 5.4) |
Voxelwise p | ~.01 (z > 2.3) |
Cluster extent | Based on GRFT |
Statistical details | — |
Findings | ↑ R posterior inferior temporal gyrus/fusiform gyrus ↑ R occipital |
Findings notes | — |
First level contrast | Picture naming (correct trials) vs viewing scrambled images |
Analysis class | Cross-sectional correlation with language or other measure |
Group(s) | Aphasia |
Covariate | Picture naming accuracy |
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? | Yes, correct trials only |
Is reaction time matched across the second level contrast? | Unknown, not reported |
Behavioral data notes | — |
Type of analysis | Regions of interest (ROI) |
ROI type | Functional |
How many ROIs are there? | 5 |
What are the ROI(s)? | (1) R IFG/insula; (2) R motor/premotor; (3) R SMA; (4) R inferior parietal; (5) R superior temporal |
How are the ROI(s) defined? | Regions activated for picture naming vs viewing scrambled images in aphasia |
Correction for multiple comparisons | No correction |
Statistical details | — |
Findings | ↑ R IFG ↑ R insula |
Findings notes | R IFG showed more activation in patients who produced more correct responses |