On Tue, 11 Jul 2000, Luis Hernandez wrote:
Hi Luis,
> Hi,
>
> Could anyone give me a reference of who came up with the use of a gamma
> variate function to model the HRF,
Friston (1994) "Analysis of functional MRI time series" HBM: Vol. 1,
153-171, implement the gamma curve as an alternative to the Poisson
(within the convolution framework).
> and the justification?
It looks a little bit like a HRF? -- i don't know of any physical
justification.
> thank you very much,
>
> -Luis
>
> --
> http://www.bme.umich.edu/~hernan
>
>
>
>
------------------------------------------------------------
John Kornak.
School of Mathematical Sciences and Institute of Hearing Research.
University of Nottingham.
email: [log in to unmask]
http://www.maths.nott.ac.uk/~jk/
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