Recognition of egocentric and allocentric visual and auditory space by neurons in the hippocampus of monkeys.

@article{Tamura1990RecognitionOE,
  title={Recognition of egocentric and allocentric visual and auditory space by neurons in the hippocampus of monkeys.},
  author={Ryoi Tamura and Taketoshi Ono and Masato Fukuda and Kae Nakamura},
  journal={Neuroscience letters},
  year={1990},
  volume={109 3},
  pages={293-8}
}
Neuronal activity in the hippocampus was recorded in the awake monkey during presentation of visual and auditory stimuli from various directions. About 10% of the neurons coded visual and/or auditory information from unique directions. Some of these neurons were stimulus-selective, and others were not. Three types of neurons were identified by rotating the animals: egocentric and allocentric, and indeterminate. The results are consistent with a role of the hippocampus in spatial memory. 

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