Small Subitizing Range in People with Williams syndrome.

@article{OHearn2011SmallSR,
  title={Small Subitizing Range in People with Williams syndrome.},
  author={Kirsten O'Hearn and James Ellis. Hoffman and Barbara Landau},
  journal={Visual cognition},
  year={2011},
  volume={19 3},
  pages={
          289-312
        }
}
Recent evidence suggests that the rapid apprehension of small numbers of objects-- often called subitizing-- engages a system which allows representation of up to 4 objects but is distinct from other aspects of numerical processing. We examined subitizing by studying people with Williams syndrome (WS), a genetic deficit characterized by severe visuospatial impairments, and normally developing children (4-6.5 years old). In Experiment 1, participants first explicitly counted displays of 1 to 8… CONTINUE READING

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