Broca aphasia

Last revised by Dr Daniel J Bell on 06 Jul 2022

Broca aphasia, also known as expressive aphasia or motor aphasia, is a type of non-fluent aphasia usually caused by injury (e.g. stroke) to Broca's area and the surrounding frontal fields 1,2.

Clinical presentation

Broca aphasia has classic effects on speech 1,2:

  • fluency: non-fluent and effortful speech with agrammatism
  • comprehension: relatively preserved with only mild impairments of complex comprehension
  • repetition: impaired
  • naming: impaired

Differential diagnosis

  • transcortical motor aphasia: shares clinical features of Broca aphasia but has preserved repetition 1,2

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Cases and figures

  • Figure 1: Broca's and Wernicke's areas
    Drag here to reorder.
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