Global processing training to improve visuospatial memory deficits after right-brain stroke.
Visuospatial stimuli are normally perceived from the global structure to local details. A right-brain stroke often disrupts this perceptual organization, resulting in piecemeal encoding and thus poor visuospatial memory. Using a randomized controlled design, the present study examined whether promoting the global-to-local encoding improves retrieval accuracy in right-brain-damaged stroke survivors with visuospatial memory deficits. Eleven participants received a single session of the Global Processing Training (global-to-local encoding) or the Rote Repetition Training (no encoding strategy) to learn the Rey-Osterrieth Complex Figure. The result demonstrated that the Global Processing Training significantly improved visuospatial memory deficits after a right-brain stroke. On the other hand, rote practice without a step-by-step guidance limited the degree of memory improvement. The treatment effect was observed both immediately after the training procedure and 24 h post-training. Overall, the present findings are consistent with the long-standing principle in cognitive rehabilitation that an effective treatment is based on specific training aimed at improving specific neurocognitive deficits. Importantly, visuospatial memory deficits after a right-brain stroke may improve with treatments that promote global processing at encoding.
Kessler Foundation Research Center, West Orange, NJ 07052, USA. pchen@kesslerfoundation.org
Peii
P
Chen
Ashley J
AJ
Hartman
C
C
Priscilla Galarza
John
J
DeLuca
D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008569:Memory Disorders / Q000209:etiology / Q000523:psychology / Q000534:rehabilitation*; D008875:Middle Aged; D009483:Neuropsychological Tests; D013028:Space Perception / Q000502:physiology*; D020521:Stroke / Q000150:complications / Q000523:psychology; D000071939:Stroke Rehabilitation; D016896:Treatment Outcome; D014796:Visual Perception / Q000502:physiology*