Evoked and Event-Related Responses
- DOI:
- 10.1093/med/9780190497774.003.0011
This chapter discusses general aspects of evoked and event-related responses in MEG and EEG recordings. The earliest evoked responses occur within milliseconds from stimulus onset (for example in the auditory brainstem) and cortical responses continue for many hundreds of milliseconds poststimulus. Sustained potentials and fields can be recorded during long-duration stimuli, or during tasks involving motor planning, attention, and other cognitive operations. Interstimulus interval and physical stimulus characteristics can dramatically affect amplitudes and latencies of evoked responses. A distinction is made between transient and steady-state responses. Various nomenclatures adopted in literature for different types of evoked responses are discussed and recommendations are given for more consistency in nomenclature.
Access to the complete content on Oxford Medicine Online requires a subscription or purchase. Public users are able to search the site and view the abstracts for each book and chapter without a subscription.
Please subscribe or login to access full text content.
If you have purchased a print title that contains an access token, please see the token for information about how to register your code.
For questions on access or troubleshooting, please check our FAQs, and if you can't find the answer there, please contact us.
