Biomedical subjects

D L Westerman

Publications and source records attributed to D L Westerman.

6 recordsLinked to original sources

PubMed2001

The role of familiarity in item recognition, associative recognition, and plurality recognition on self-paced and speeded tests.

Four experiments compare the effect of familiarity on item, associative, and plurality recognition on self-paced and speeded tests. The familiarity of test items was enhanced by presenting a prime that matched the subsequent test item. On item and plurality recognition tests, participants were more likely to respond "old" to primed than to unprimed test items. In associative recognition, priming increased the proportion of old responses on a speeded test, but not on a self-paced test. This suggests that familiarity plays a larger role in item and plurality recognition than in associative recognition on self-paced tests. On speeded tests, priming has a similar effect on item, associative, and plurality recognition. Results suggest that item and associative recognition rely differentially on familiarity and recollection. They are also consistent with recent evidence suggesting that different processes underlie plurality and associative recognition.

Adult↗

PubMed2000

Recollection-based recognition eliminates the revelation effect in memory.

The revelation effect refers to the tendency to call an item on a recognition test old if it is preceded by a cognitive task that involves the processing of a similar stimulus (Watkins & Peynircioğlu, 1990). It has been proposed that the revelation effect occurs because of an increase in the familiarity of the test items in the revelation condition (Luo, 1993; Westerman & Greene, 1998). In the present experiments, the revelation effect was investigated in recognition tasks that were not based solely on the familiarity of the test items but, also, on a recall-like retrieval process. A revelation effect was not found on an associative-recognition task or on a plurality recognition task. The results of this study show that the revelation effect does not occur when the contribution of familiarity to recognition decisions is reduced by factors that encourage the recollection of the study episode.

Humans↗

PubMed1999

The effects of recent exposure on general-knowledge estimation.

Recent exposure to general-information facts creates a tendency to claim that the facts had been known prior to their exposure. In Experiment 1, this "illusory knowledge effect" occurred even when participants did not have to demonstrate their knowledge by recalling part of the fact. In Experiment 2, the effect was found for both true and false facts. These findings suggest that the tendency to claim that recently presented facts had been previously known is caused by their enhanced familiarity. Accounts that would attribute this effect entirely to an underestimation of participants' knowledge of the new facts or to participants' intentional inflation of their prior knowledge states are not supported by these results.

Analysis of Variance↗

PubMed1998

The revelation that the revelation effect is not due to revelation.

The revelation effect is the tendency to call an item on a recognition test "old" if it is preceded by a different task interpolated between study and test. Seven experiments explored the generality of the revelation effect across a number of interpolated tasks. A revelation effect emerged when a variety of tasks preceded recognition test items; the effect was found for test items that followed a memory-span task, a synonym-generation task, and a letter-counting task. The compatibility between the test stimuli and the stimuli that composed the interpolated task was found to be a critical factor. With words as stimuli on a recognition test, a revelation effect was found when the stimuli in the interpolated task were words and letters. However, when numbers were the stimuli in the interpolated task, no revelation effect was found.

Attention↗

PubMed1997

Verbal-overshadowing effect: evidence for a general shift in processing.

Two experiments investigate the nature of the verbal-overshadowing effect-the finding that recognition performance for certain stimuli is impaired if it is described verbally (Schooler & Engstler-Schooler, 1990). Impairment on a face-recognition task was found, although participants produced not a verbal description of the target but, instead, a description of another object (a car) presented in the study phase. These results support the idea that the verbal-overshadowing effect reflects a general shift in the processes involved in face recognition rather than a specific impairment for the described stimulus. Results also support the notion that the impairing effect of verbalization is unique to certain types of stimuli; verbalization impaired recognition of a face but not of a car.

Adult↗

PubMed1996

On the generality of the revelation effect.

Seven experiments demonstrate the robustness of the revelation effect, which is the tendency to call recognition test items old if they are distorted when they initially appear and if they are revealed before the recognition judgment. With anagrams as the distortion, a revelation effect was found in within- and between-subjects designs, in a frequency-judgment task, in a list-discrimination task, when new items were used as targets, when the study list and the test were presented in different modalities, and when the word that was revealed did not match the word that was recognized. These results challenge accounts that attribute the revelation effect either to an increase in the familiarity of the revealed test word or to a positive response bias.

Adult↗