How does Lamda differ from POSTS?

Lamda activity is a type of EEG wave that occurs predominantly when a person is awake and typically appears during the transition from eyes closed to eyes open. This phenomenon is often observed in the occipital region and is actually linked to visual processing as the individual opens their eyes and begins to engage with visual stimuli.

In contrast, POSTS (posterior slow waves of attention) are slower waves that are more prevalent when a person is alert and focused on visual tasks but can also be associated with periods of attention and cognitive processing. The key distinguishing feature is that Lamda specifically occurs during eye opening, which is not the case for POSTS.

Thus, understanding the correct context and characteristics of Lamda reinforces its association with eye-opening and visual engagement, distinguishing it from POSTS and highlighting its unique physiological significance in the EEG patterns.