Experimental procedure, and behavioral and experimental measures.

*In the One minute words/pseudowords test, the reader was asked to read as fast and as accurate as he/she could two separate lists of words and pseudowords in Hebrew in one minute.
**The orally connected text contained 264 words. The texts were taken from the Reading Test section of the Israeli Psychometric SAT [50]. A measure of word per second was calculated for each test.
***This test contained an increased number of adjectives and the subject was asked to name their opposites in the same order they were introduced. The test examined accuracy when producing the correct adjectives by their order.
****These tests were given to the subjects in the form of games rather than formal tests. Each task had detailed instructions and a short practice session before the actual test. If the user did not fully understand the task, the computer presented a reminder of the task's rules. The program ensured that the user understood the task and then started measuring his/her performance. Each of the memory measures for each subject was later compared to the database of age-matched normal population measurements [47], yielding the subject's relative memory skill performance. According to the subject's baseline evaluation prior to the experiment, the training program offered him/her the most suitable training program.
*****The training program lasted six weeks with four sessions per week (approximately 20 minutes each) for a total of 24 intervention sessions for each subject (see Methods section).