title: Processing of emotional words after stroke: an electrophysiological study.
abstract: OBJECTIVE
  Auditory evoked potentials (EP) were used to examine the neural processing of personal-emotional and neutral words, in a group of 14 people with post-stroke aphasia and an equal sized control group to determine whether the EP differed between groups and word types.
  
  
  METHODS
  Effects of the emotional value of the words and participant group were assessed on EP. Latencies and amplitudes of EP were analyzed for the two groups (aphasia and control) in response to word type (emotional and neutral).
  
  
  RESULTS
  N1 amplitudes were smaller and P2 and P3 were delayed in the aphasia group, for both word types, indicating effects of stroke on processing of both neutral and emotional words. P3 amplitudes were larger for emotional words in both groups. These differences in late cortical responses between word types for both groups suggest distinct neural networks involved in the response to emotional and neutral words, even with post-stroke language impairment.
  
  
  CONCLUSIONS
  The neurophysiological processing of affective speech in aphasia has been revealed. This opens up the interpretation of these results to the critical assessment and therapeutic identification of emotional language in people with aphasia.
  
  
  CONCLUSIONS
  This study has implications not just for aphasia but allows for further exploration of other neurological conditions.
authors.affiliation: Discipline of Speech Science, School of Psychology, Tamaki Campus, The University of Auckland, 261 Morrin Road, Glen Innes, Private Bag 92019, Auckland, New Zealand. ofek.einat@gmail.com
authors.forename: E
authors.initials: E
authors.lastname: Ofek
authors.forename: S C
authors.initials: SC
authors.lastname: Purdy
authors.forename: G
authors.initials: G
authors.lastname: Ali
authors.forename: T
authors.initials: T
authors.lastname: Webster
authors.forename: N
authors.initials: N
authors.lastname: Gharahdaghi
authors.forename: C M
authors.initials: CM
authors.lastname: McCann
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001037:Aphasia / Q000175:diagnosis* / Q000209:etiology* / Q000503:physiopathology; D001307:Auditory Perception / Q000502:physiology*; D004569:Electroencephalography; D004644:Emotions / Q000502:physiology*; D005072:Evoked Potentials, Auditory / Q000502:physiology*; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D008875:Middle Aged; D020521:Stroke / Q000150:complications*
keywords: Aphasia; ERP; Emotional processing; Language; Personal–emotional words; Stroke