Practice question · Sort into groups
Sort each source of evidence about language in the brain by whether it is LESION-based or NON-LESION.
Groups: Lesion evidence · Non-lesion evidence
- Conduction aphasia after damage to a connecting tract
- Recovery patterns after stroke
- Event-related potentials to anomalous words
- Broca's 1861 patient
- Functional imaging during sentence reading
- The Wada test before surgery
Hints
- One column depends on something having gone wrong.
- The Wada test anaesthetises temporarily rather than damaging.
Show the answer
Lesion evidence: Broca's 1861 patient, Conduction aphasia after damage to a connecting tract, Recovery patterns after stroke
Non-lesion evidence: Functional imaging during sentence reading, The Wada test before surgery, Event-related potentials to anomalous words
Why
The distinction matters because the two kinds of evidence answer different questions. A lesion shows what is necessary; imaging shows what is engaged, which is a much weaker claim, a region can activate during a task without being required for it.
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