Alpha rhythm - Revision history

EEGpedia at 14:45, 30 March 2017

2017-03-30T14:45:55Z

2017-02-22T09:33:47Z

2017-02-22T09:32:57Z

2017-02-14T12:43:36Z

2017-02-14T11:36:44Z

2017-02-14T11:33:43Z

2017-02-14T11:33:29Z

2017-02-14T11:33:20Z

2017-02-14T11:30:47Z

2017-02-14T11:30:32Z

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 *Suppressed with eyes open, mental stress or sleep
 *Left-right difference <1 Hz in frequency and <50% in amplitude (amplitude is usually higher on the right side)
-*Alpha variants are normal sub- and supraharmonic frequencies of the alpha rhythm, particularly in children and young adults.
+*Alpha variants are normal sub- and supraharmonic  frequencies of the alpha rhythm, particularly in children and young adults ([[Slow alpha variant]] and [[Fast alpha variant]])
 *2-5% of healthy people does not have a detectable alpha rhythm

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 '''''Alpha rhythm of 9 Hz, posterior dominant with waxing and waning (source)'''''
-[[File:Alpha rhythm average e.png|border|left]]
+[[File:Alpha rhythm average e.png|border|1500px|left]]
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@@ Line 45: / Line 45: @@
 '''''Alpha rhythm of 9 Hz, posterior dominant with waxing and waning (source)'''''
-[[File:Alpha rhythm average e.png|border|1400px|left]]
+[[File:Alpha rhythm average e.png|border|left]]
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← Older revision		Revision as of 12:43, 14 February 2017
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	*Left-right difference <1 Hz in frequency and <50% in amplitude (amplitude is usually higher on the right side)		*Left-right difference <1 Hz in frequency and <50% in amplitude (amplitude is usually higher on the right side)
	*Alpha variants are normal sub- and supraharmonic frequencies of the alpha rhythm, particularly in children and young adults.		*Alpha variants are normal sub- and supraharmonic frequencies of the alpha rhythm, particularly in children and young adults.
		+	*2-5% of healthy people does not have a detectable alpha rhythm

@@ Line 42: / Line 42: @@
 ----
-'''''Alpha rhythm of 9 Hz, posterior dominant with waxing and waning'''''
+'''''Alpha rhythm of 9 Hz, posterior dominant with waxing and waning (source)'''''
 [[File:Alpha rhythm average e.png|border|1400px|left]]
 ----

@@ Line 8: / Line 8: @@
 *Left-right difference <1 Hz in frequency and <50% in amplitude (amplitude is usually higher on the right side)
 *Alpha variants are normal sub- and supraharmonic frequencies of the alpha rhythm, particularly in children and young adults.
-*The posterior basic rhythm frequency is age dependant:
+*The posterior basic rhythm frequency is age dependent:
-**0-3 months: 	No posterior basic rhythm
-**4 months:	3-4 Hz
-**5 months:	5 Hz
-**1 years:	6-7 Hz
-**3 years:	8 Hz
-**7 years:	9 Hz
-**> 60 years:	Decrease by 0.08 Hz/year
 {| class="wikitable"