Final answer:
O'Keefe and Dostrovsky showed that pyramidal cells are integral to spatial coding and navigation.
Step-by-step explanation:
Researchers O'Keefe and Dostrovsky demonstrated that pyramidal cells play a role in spatial coding and navigation. Pyramidal cells are a type of multipolar neuron found in the cerebral cortex and are known for their role in various cognitive processes including memory and navigation. These cells are essential in the establishment of excitatory pathways and function importantly within the network of the brain's neurons for processing spatial memory and their relationship to the environment.