PERCEPTUAL RECOGNITION AS A FUNCTION OF MEANINGFULNESS O F STIMULUS MATERIAL
por Liagre Roxane
1. Résultats
1.1. Limited capacity to handle information so that they lose information while they are responding. Sperling asked questions => interferences => can't remember all the letter
1.2. The tester did worse in the precue condition than in the no-prevue condition. Exactly the same conditions except for the advance information.
1.3. Long duration was easier than the short duration for every testers.
1.4. Eight of the nine testers did better on the single words than on single letters.
2. Expérimentation: Sperling
2.1. Very brief visual presentation of letters.
2.2. 1963
2.2.1. one letter every 10 msec
2.2.1.1. Present studies
2.2.1.1.1. Measured recognition performance on one or two letters, four-letter words, and four-letter nonwords
2.3. 9 testers, 48 observations : stimulus duration, cueing condition, and type of material. (no idea of what type of material would be used).
2.3.1. Three blocks of trials corresponding to the three stimulus durations
2.3.1.1. No idea of what type of material would be used.
2.3.1.1.1. The durations systematically changed after each second session.
2.3.2. The word stimuli were 216 four-letter words chosen such that each of the words could be changed by one letter to make up a new word.
2.3.2.1. For example alternative between D and K
2.3.2.1.1. The six types of material were sorted into blocks of 48 stimulus items.
3. Questions de recherche de l'auteur
3.1. Tachistoscope
3.2. VIS
3.2.1. fast-decaying system
3.3. SCAN
3.3.1. selects information from the VIS and passes it on for further processing