* Neurophysiological recordings of individual neurons in freely flying bats, using radio-telemetry -- in hippocampus and entorhinal cortex
* The neural basis of behavior
* From the bat's biological sonar system to spatial cognition
* Mammalian hippocampus (hippocampal place cells) and entorhinal cortex (grid cells)
* Neuronal circuits: hippocampal and entorhinal neural activity in freely-behaving echolocating bats
* Neural codes for 2-D and 3-D space in the mammalian brain
* Neurobiology of learning and memory: a systems neuroscience approach
