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Alexis C Perkins

Publications and source records attributed to Alexis C Perkins.

2 recordsLinked to original sources

Reporting of ethical review of clinical research submitted to the Journal of the American Academy of Dermatology.

BACKGROUND: In recent years there has been an increasing focus on human subject protection and on documentation of ethical review in published clinical research. The JAAD clearly states in its instructions to authors, which adhere to the guidelines set forth by the International Committee of Medical Journal Editors, "studies involving live human subjects must have been approved by the author's Institutional Review Board or its equivalent." OBJECTIVE: To determine what proportion of prospective studies on human subjects submitted to the clinical trials and therapeutics section lacked mention of review by an ethics board and to determine the outcome of these manuscripts. METHODS: We reviewed 150 prospective studies submitted from July 1, 2004 to January 16, 2006 to a single associate editor, who receives the majority of reports requiring ethics board review. RESULTS: Of 150 prospective studies, 36% (n = 54) had no mention of ethics review or consent, whereas 15% (n = 22) mentioned consent but not ethics review. Forty-two papers were returned asking for ethics information, and of these, 48% were resubmitted with confirmation of ethics review, 22% were withdrawn, 12% were never resubmitted, 12% responded that ethical review was not obtained, and 7% were clarified as exempt from review. Of the 150 papers, 45% were from US authors and 55% were from international authors. Sixty-seven percent of US papers and 35% of international papers included ethics board information (P <or= .001). Of the remaining authors who did not initially provide information on ethics review, 25% of US and 53% of international authors were able to provide documentation of ethics board review when asked. Of international authors asked for ethics information, 67% of European authors provided confirmation of ethical review, as compared with 48% of non-European authors. LIMITATIONS: It is not possible to know with certainty whether each study not citing ethics review actually did not undergo review by an ethics board. Additionally, other editors may have handled some studies requiring ethics review. CONCLUSIONS: One half of authors submitting papers on prospective clinical studies to the JAAD did not provide evidence of ethical review on initial submission. The reason for omission was likely oversight in half of the cases, but in others ethics review and approval were likely not obtained. International authors were more likely to omit mention of ethics review, but, although sample size was too small for statistical analysis, international authors were more often able to provide it when asked, suggesting oversight or misunderstanding as a reason for omission. Furthermore, ethics review may be more standard in the European Union, as European authors were more likely to be able to provide the information when asked, although small sample size precluded statistical analysis.

Dermatology↗

Age-related differences in brain activation during emotional face processing.

Advancing age is associated with significant declines on neurobehavioral tasks that demand substantial mental effort. Functional imaging studies of mental abilities indicate that older adults faced with cognitive challenges tend to activate more regions, particularly frontal, than their younger counterparts, and that this recruitment of additional regions may reflect an attempt to compensate for inefficiency in cortical networks. The neural basis of emotion processing in aging has received little attention, and the goal of the present study was to use functional magnetic resonance imaging (fMRI) to examine the influence of age on facial emotion processing and activation in cortical and limbic regions. Participants (eight old and eight young adults) viewed facial displays of happiness, sadness, anger, fear, disgust, and neutrality in alternating blocks of emotion and age discrimination. We predicted that in response to an emotion discrimination task, older adults would demonstrate increased use of frontal regions relative to younger adults, perhaps combined with diminished use of regions recruited by younger adults, such as temporo-limbic regions. During the emotion discrimination task, young participants activated, visual, frontal and limbic regions, whereas older participants activated parietal, temporal and frontal regions. A direct comparison between emotion and age discrimination revealed that while younger adults activated the amygdala and surrounding temporo-limbic regions, older adults activated left frontal regions. The results of this study suggest that older adults may rely on different cortical networks to perceive emotional facial expressions than do their younger counterparts.

Adult↗