David,
There is a nice chapter on TGA in the "Neuropsychology of Memory
(1992)" second edition edited by Larry Squire and Nelson Butters and
published by Guilford. The chapter was written by Mark Kritchevsky.
In general it refers to TGA as a short lasting neurological condition
characterized by significant memory impairment. There is intact
immediate memory and personal identity, but severe retrograde
amnesia (up to 20 years prior to onset of TGA) and anterograde amnesia
for verbal and non-verbal information (some have reported a positive
correlation between the extent of RA and AA). The cause is unknown,
but PET studies reveal large decreases in blood flow in the temporal
lobe. The suggestion at the time this book chapter was published is
that there may be some sort of acute arterial dyscontrol creating
altered vascular tone in the arteries feeding the temporal lobe
regions. Typically there is complete recovery of memory except for the
events that occurred during the TGA attack and possible events that
occurred a couple of hours prior to it.
I hope this is helpful.
Rob Flint
-----------------------------------
Robert W. Flint, Jr., Ph.D.
Minnesota State University, Mankato
Department of Psychology
On Fri, 23 Apr 1999 09:00:20 -0500 (EST)
[EMAIL PROTECTED] wrote:
>
> This term came up in class during memory unit. Student claims it is a
> term for a temporary loss of ability to recall, without any apparent
> physical damage. Help!
>
> David Griese'
> SUNY Farmingdale
>
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Robert Flint
[EMAIL PROTECTED]
