Table 2. Language processes engaged by different language and baseline tasks.
Table shows the main language tasks (top left quadrant) and baseline tasks (bottom left quadrant) identified as being widely used in laterality research. For each type of task, the number of studies (N) within our search selection using this task is given, as well as one characterisation of the different language processes (middle column) and domain general processes (right column) they engage.
Language processes | Domain general processes | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Task | N studies | Speech motor planning/ articulation | Phonological access | Orthographical processing | Semantics | Word retrieval | Syntax | Working memory | Motor processing | Auditory processing |
Language tasks | ||||||||||
Verbal fluency | 53 | ✔ | ✔ | (✔) | (✔) | ✔ | ✔ | |||
Sentence generation | 5 | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | |||
Passive speech listening | 7 | ✔ | ✔ | ✔ | (✔) | ✔ | ||||
Text reading | 2 | ✔ | ✔ | ✔ | ✔ | ✔ | (✔) | |||
Phonemic decision | 8 | (✔) | ✔ | (✔) | (✔) | (✔) | ✔ | (✔) | ||
Semantic decision | 20 | (✔) | (✔) | ✔ | (✔) | ✔ | (✔) | |||
Sentence comprehension | 8 | ✔ | (✔) | ✔ | ✔ | ✔ | (✔) | |||
Naming | 9 | ✔ | ✔ | ✔ | ✔ | |||||
Baseline tasks | ||||||||||
Rest | 37 | (✔) | ||||||||
Perceptual decision (non-linguistic) | 25 | ✔ | (✔) | |||||||
Finger tapping | 3 | ✔ | ||||||||
Non-word/word repetition | 8 | ✔ | ✔ | |||||||
Recite months of the year/count sequence | 2 | ✔ | ✔ | (✔) | ✔ | |||||
Tone listening | 3 | ✔ | ||||||||
Backward speech listening | 2 | ✔ | ||||||||
Nonsense text reading | 2 | ✔ | ✔ | ✔ | ||||||
Spatial position naming | 1 | ✔ | ✔ | ✔ | ✔ |
Notes.
- ✔
- engaged
- (✔)
- sometimes engaged (e.g., depending on task demands, modality of stimuli, occurrence of automatic linguistic processing)