Biomedical subjects

Mitchell M Metzger

Publications and source records attributed to Mitchell M Metzger.

3 recordsLinked to original sources

PubMed2006

Face distinctiveness and delayed testing: differential effects on performance and confidence.

The author investigated the effect of delayed testing on participants' memory for distinctive and typical faces. Participants viewed distinctive and typical faces and were then tested for recognition immediately or after a delay of 3, 6, or 12 weeks. Consistent with prior research, analysis of measure of sensitivity (d') showed that participants performed better on distinctive rather than typical faces, and memory performance declined with longer retention intervals between study and testing. Furthermore, the superior performance on distinctive faces had vanished by the 12-week test. Contrary to d' data, however, an analysis of confidence scores indicated that participants were still significantly more confident on trials depicting distinctive faces, even with a 12-week delay between study and recognition testing.

Adult↗

PubMed2003

Glucose enhancement of face recognition is unaffected by alterations of face features.

Glucose improves memory on a variety of tasks has been well established in both the animal and human literature. Of particular relevance to the present experiment is the finding that administration of glucose improves face recognition performance in both healthy, young adults and in Alzheimer's patients. This experiment attempted to expand on these findings to determine if glucose-enhanced performance for face recognition is specific to certain face features (e.g., nose, eyes, or hair). In a between subjects experiment that tested healthy, young adults, a pre-training administration of glucose (50 g) was shown to improve face recognition performance relative to placebo (27.3mg saccharin); however, the significant improvement on the task was not specific to a particular feature. This result suggests that glucose did not enhance memory for individual face features, but rather enhanced overall memory for face stimuli.

Adolescent↗

PubMed2003

The world wide web and the laboratory: a comparison using face recognition.

In recent years, a growing number of psychological researchers have turned to the World Wide Web (WWW) as a resource to access participants in experimental studies. While there are benefits to this approach in conducting psychological research (e.g., access to a potentially large subject pool and faster data collection), there are also concerns regarding this medium (e.g., the validity of the data). In recent years, data collected on-line has been validated by comparing it to data collected in the traditional laboratory setting. This study attempted to build on these previous reports by comparing face recognition data collected on the web and data collected in a laboratory. In two separate experiments, data collected from WWW participants did not statistically differ from data collected with undergraduate college students in a classroom setting. These findings strongly suggest that the WWW may be a viable alternative for researchers conducting face recognition experiments.

Adult↗