A neural interface allows human brain communicate directly with a computer, without any other equipment. That kind of interface allows any illusions to be inputted to human nervous system. Thus you don't need any virtual glasses or data-gloves for accessing the cyberspace.

Links & References

The Desire to Be Wired

Will we live to see our brains wired to gadgets? How about today?
By Gareth Branwyn.

Brain-Computer Interface

Digital Signal Processing of Spatio-Temporal Electroencephalogram (EEG) - Patterns Associated With Voluntary Motion Preparation. Brain-Computer Interface (BCI) research project at Florida International University .