Ambulatory eeg
![ambulatory eeg ambulatory eeg](https://i.ytimg.com/vi/LqNVouLVSdQ/maxresdefault.jpg)
In many cases, ambulatory EEG is essentially the same to the usual setup of a regular EEG experiment – a participant has an EEG headset placed on the head, the electrodes make contact to the skin using some kind of conductive gel, the conductance is tested, and the whole setup is checked in the connected software.Īlthough there are crucial similarities, there are also crucial differences. The latter two are more concerned with understanding how brain processes change in a normal population over time (and potentially within different contexts as well).īelow, we will specifically talk about how the brain processes occurring with natural behavior can be measured using ambulatory EEG, and the common pitfalls that occur with data collection and analysis. The former two examples are principally for medical reasons – the application of ambulatory methods is done so in order to detect or measure aberrant neurological activity throughout the day. shopper studies, user interaction studies) What are the reasons for ambulatory EEG?Īmbulatory EEG is usually carried out for the following reasons: This means not only that there will be more data, but also more movement, and (likely) a wide range of interacting factors will impact the data. While this has been ideal for assessing brain activity in specific settings, sometimes a different approach is required.Īmbulatory EEG is the method of collecting EEG data over a long period of time (this can be anything from hours to days) in naturalistic settings. While the level of visual information received isn’t as detailed as some other neuroimaging techniques (such as fMRI, or functional magnetic resonance imaging), the temporal resolution, combined with the portability, relative affordability, and ease-of-use means that EEG is one of – if not the most – commonly used neuroimaging methods.ĮEG is often used within strictly controlled experimental settings – scenarios in which data is collected for a set amount of time, with little movement, and clearly defined stimuli. There are several neuroimaging devices available, but none of them give such a high level of temporal resolution as EEG. Attempts to understand human behavior can involve the measurement of a range of physiological signals, but getting closer to the brain requires equipment to record its activity. It’s an age-old concept in science that if you want to understand something, you first have to measure it.