[Eeglablist] wavelet cycle sorting trials by phase value

[Zhenzhu XU]

thank you very much
At 2012-08-16 02:58:11,"Makoto Miyakoshi" <mmiyakoshi at ucsd.edu> wrote:
>Dear Zhenzhu,
>
>A 10 Hz sine wave has one positive peak and one negative peak. This is
>called a cycle. You also know how long this one cycle is, because 10
>Hz means 10 peaks & troughs per second by definition. Therefore, 1000
>ms / 10 = 100 ms length is one cycle of 10 Hz wave.
>
>Now your wavelet has 3 cycles of 10 Hz. 1 cycle of 10 Hz is 100 ms as
>we have seen above. If we have 3 cycles, the length is simply 100 ms *
>3 cycles = 300 ms.
>
>Makoto
>
>2012/8/15 Zhenzhu XU <xuzhenzhu2010 at 163.com>:
>>
>> hello，
>>
>> IN the manual of ‘Sorting Trials in an ERP by Phase Value ‘
>>
>> Noted:
>>
>> In this computation, a 3-cycle 10 Hz wavelet was applied to a window in each
>> trial centered at time 0. The width of the wavelet was 300 ms (i.e., three
>> 10-Hz cycles of 100 ms). Therefore, it extended from -150 ms to 150 ms.
>>
>> I wonder what the wavelet cycle means here ?and  why ‘3-cycle 10 Hz
>> wavelet(center 0) is 300ms?
>>
>> Could you give me some more reference?
>>
>>
>>
>>
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>
>
>
>-- 
>Makoto Miyakoshi
>JSPS Postdoctral Fellow for Research Abroad
>Swartz Center for Computational Neuroscience
>Institute for Neural Computation, University of California San Diego