Biomedical subjects

Robert L Greene

Publications and source records attributed to Robert L Greene.

4 recordsLinked to original sources

PubMed2005

Recognition without perceptual identification: a measure of familiarity?

Previous work has shown that when items in a perceptual identification task are presented too quickly to identify, participants can still discriminate between studied and unstudied items. Such recognition without perceptual identification (RWPI) has been shown to occur in a variety of situations, including the false recognition of semantic associates of studied items. The present study investigated the utility of the RWPI paradigm for isolating instances of recognition that are familiarity based from those that are recollection based. Toward this end, the magnitude of the RWPI effect was compared in item versus associative recognition and in short versus long lists. The RWPI effect was larger in item than in associative recognition, and larger with short than with long study lists. These results are interpreted within the context of a dual-process approach to recognition and support the notion that RWPI taps familiarity-based recognition.

Humans↗

PubMed2004

True and false memory in the absence of perceptual identification.

Two experiments are reported in which, after attempting to identify a briefly flashed, masked test word, participants were asked to rate the likelihood that it had been presented in an earlier study list. Even when people were unable to identify such items, they demonstrated an ability to discriminate between those that were studied and those that were not studied; ratings given to studied items were significantly higher than ratings given to nonstudied items. This effect does not appear to be a data-driven phenomenon. In Experiment 1 it was found when the presentation modality was changed from study to test. In Experiment 2 false memory for unidentified items that were related to studied items was shown.

Adult↗

PubMed2004

Does recognition of single words predict recognition of two?

Participants studied a list of words, presented 1 at a time. When they were tested on pairs of words and asked to indicate whether both had occurred in the list, they gave more positive responses than would be expected on the basis of results from participants tested 1 word at a time. When participants were asked whether either member of a test pair had been shown on the study list, they gave positive responses less often than expected. When participants were asked to indicate how many words in a test pair came from the study list, they answered "2" more often and "1" less often than would be expected on the basis of results from single-item recognition. Accuracy was not affected by testing items in pairs.

Humans↗

PubMed2002

Paradoxical effects of presentation modality on false memory.

Two experiments are reported in which the effects of presentation modality on false memory in recall and recognition are studied. False recall and recognition of critical targets are lower for non-presented items related to a study list when that study list is presented visually than when presented auditorily. This pattern of low levels of false memory for critical targets holds even when participants read the visually presented study items aloud. These results suggest that recollection of visual detail plays a role in the prevention of false memory. However, both the hit rates (true memory) and the false-alarm rates to weakly related distractors (non-critical targets) were higher for visual presentation than for auditory presentation, suggesting that more than one mechanism may underlie false recognition.

Acoustic Stimulation↗