We found accessing the compartment for the battery and memory card a pain, as it doesn't auto-lock when you close it, requiring an unnecessary bit of finger adroitness, and removing and replacing batteries can also be a fiddly affair.
"The way that neurons communicate with each other is by how fast they fire pulses, it's a little bit akin to listening to a Geiger counter click, and it's that property that we lock onto, " said Professor Andrew Schwartz from the University of Pittsburgh.