RECOVERY OF HIGH-SPEED MEMORY SCANNING AFTER TRANSIENT GLOBAL AMNESIA- A CASE-REPORT

We described the case of a 59 year old female with transient global am nesia (TGA) who had been examined neuropsychologically using Sternberg 's paradigm and a random number generation (RNG) task on the following day, 1 week and 4 weeks after a TGA episode. The slope value of the l inear function, a measure of cognitive memory scanning speed, decrease d with time and showed a marked decrease 1 week after TGA, suggesting that the stage of serial and exhaustive scanning recovered within 1 we ek. The zero-intercept value, on the other hand, increased during 1 we ek but decreased 4 weeks later and was not related directly to recover y from TGA. The performance in RNG task improved 1 week later, but det eriorated 4 weeks after the episode. Such a change in RNG was in accor dance with that of the zero-intercept value, predicting a relationship . It is concluded that the subclinical memory deficit, detected with t hese tasks, persisted longer than clinical recovery from TGA.