Difference between revisions of "Lambda waves"
From EEGpedia
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*Present with eyes opened and during visual fixation | *Present with eyes opened and during visual fixation | ||
*Same morphology as [[POSTS (Positive occipital sharp transients of sleep)]], both in form and in occipital distribution, however POSTS are during sleep. | *Same morphology as [[POSTS (Positive occipital sharp transients of sleep)]], both in form and in occipital distribution, however POSTS are during sleep. | ||
| + | |||
| + | |||
| + | ---- | ||
| + | ''''' Lambda waves, absent during eyes closed (double banana)''''' | ||
| + | [[File: Lambda_double_banana_e.png|border|1200px|left]]Beta_e_double_banana.png | ||
| + | ---- | ||
Revision as of 11:49, 22 February 2017
- Located in the occipital regions bilaterally as positive waves.
- Triangular in shape (like the capital lambda: Λ) and generally symmetric.
- Amplitude: 50 microV
- Duration 200-300 msec
- Present with eyes opened and during visual fixation
- Same morphology as POSTS (Positive occipital sharp transients of sleep), both in form and in occipital distribution, however POSTS are during sleep.
Lambda waves, absent during eyes closed (double banana)
