View source for 6 Hz spike-and-wave bursts (WHAM and FOLD)

'''6 Hz spike-and-wave bursts (WHAM and FOLD) '''

Synonymes: Phantom spike and waves

* Brief bursts of low amplitude spike-and-slow wave 6Hz (5-7Hz)
* Spike often not clearly discernible: “phantom”
* Bilateral and synchronous
* Maximal at midline (posterior or anterior)
* Relaxed wakefulness and drowsiness
* Adolescents and young adults
* duration of 1-2 seconds


Two subtypes of 6 Hz spike-and-wave bursts
* WHAM: '''W'''aking, '''H'''igh amplitude spike (>45uV), '''A'''nterior, '''M'''ale
** '''Associated with epilepsy''' especially when high amplitude spikes, rate <5-6Hz and persists during deep sleep


* FOLD: '''F'''emale, '''O'''ccipital, '''L'''ow amplitude spike, '''D'''rowsy
** '''Not associated with epilepsy'''


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''''' FOLD: low amplitude, bilateral occipital, synchronous spike and waves (double banana)'''''

[[File: FOLDs_(double_banana).png|border|1200px]]
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''''' WHAM: anterior, bilateral, high amplitude spike and wave, associated with epilepsy (average)'''''

[[File: WHAM_(average)_1.png|border|1200px|left]]
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