Effects of time of day on radiological interpretation

Alshabibi, Abdulaziz S.; Suleiman, Moayyad E.; Tapia, Kriscia; Brennan, Patrick C.

doi:10.1016/j.crad.2019.10.006

Cited by 13 publications

(12 citation statements)

References 72 publications

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“…Understanding how cognition fluctuates throughout the day is also critical for a better understanding and optimization of everyday behavior. Circadian rhythms interact with nearly every aspect of our daily lives, not least when we attend school or work [ 137 , 138 ]. While various aspects of cognition are impaired in the morning for young adults [ 24 , 39 ], leading this time to be considered “non-optimal,” the finding that generalization is improved in the morning in this population demonstrates that these effects may depend crucially on the kind of cognition in question.…”

Section: Discussionmentioning

confidence: 99%

Examining the effects of time of day and sleep on generalization

et al. 2021

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Extracting shared structure across our experiences allows us to generalize our knowledge to novel contexts. How do different brain states influence this ability to generalize? Using a novel category learning paradigm, we assess the effect of both sleep and time of day on generalization that depends on the flexible integration of recent information. Counter to our expectations, we found no evidence that this form of generalization is better after a night of sleep relative to a day awake. Instead, we observed an effect of time of day, with better generalization in the morning than the evening. This effect also manifested as increased false memory for generalized information. In a nap experiment, we found that generalization did not benefit from having slept recently, suggesting a role for time of day apart from sleep. In follow-up experiments, we were unable to replicate the time of day effect for reasons that may relate to changes in category structure and task engagement. Despite this lack of consistency, we found a morning benefit for generalization when analyzing all the data from experiments with matched protocols (n = 136). We suggest that a state of lowered inhibition in the morning may facilitate spreading activation between otherwise separate memories, promoting this form of generalization.

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Section: Discussionmentioning

confidence: 99%

Examining the effects of time of day and sleep on generalization

et al. 2021

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“…There is a small literature on diurnal variation of radiologist performance [3][4][5][6]8]. To date, studies have focused on almost exclusively on plain film interpretation (mammograms and chest radiographs) and many were conducted outside a radiology reading room environment and before the advent of the modern PACS workstations [3][4][5].…”

Section: Discussionmentioning

confidence: 99%

“…Variation of mental acuity and visual selective attention has been demonstrated in several arenas of human performance, including radiology [1][2][3][4][5][6]. It is unclear, however, whether such variation follows a diurnal pattern for practicing radiologists or whether it results in periods of the day when the radiologist might be particularly prone to error.…”

Section: Introductionmentioning

confidence: 99%

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Diurnal variation of major error rates in the interpretation of abdominal/pelvic CT studies

et al. 2020

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Rationale and objective Variation of visual selective attention through the day has been demonstrated in several arenas of human performance, including radiology. It is uncertain whether this variation translates to an identifiable diurnal pattern of error rates for radiology interpretation. The purpose of this study was to attempt to identify particular days of the week and times of the day when radiologists might be most prone to error. Materials and methods Abdomen/pelvis CT studies containing at least one major error were collected from a 10-year period from the quality assurance (QA) database at our institution. A major error was defined as a missed finding that had altered management in a way potentially detrimental to the patient. The identified studies were categorized by the day of the week and hour of the day that the study was interpreted. Study volume data over this same period was also obtained by day of the week and time of day, so to normalize the data based on case volume. Standard errors of the volume-adjusted error rates were obtained based on the binomial distribution. The null hypothesis of constant error rates over time was tested using a weighted logistic regression model with linear time as predictor. Results A total of 252 major errors were identified. More errors were made on Monday than on any other day of the week (n = 58). Major error rates increased through the mid to late morning (9 am to 12 pm), and then decreased progressively through the afternoon until 4 pm, when a rise in the error rate was seen. This pattern persisted when error rates were normalized by study volume within each hour. Overall tests of time-constancy of error rates by day and hour were statistically significant (both p-values < 0.001). ConclusionOur study shows that error rates in abdominal CT do seem to vary with time of day and day of the week. During the workweek, error rates were highest in the late morning and at the close of the workday, and greater on Mondays than other days.

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“…Understanding how cognition fluctuates throughout the day is also critical for a better understanding and optimization of everyday behavior. Circadian rhythms interact with nearly every aspect of our daily lives, not least when we attend school or work (Alshabibi et al, 2020;Goldin et al, 2020). While various aspects of cognition are impaired in the morning for young adults (Schmidt et al, 2007;Yoon et al, 1999), leading this time to be considered "non-optimal," the finding that generalization is improved in the morning in this population demonstrates that these effects may depend crucially on the kind of cognition in question.…”

Section: Discussionmentioning

confidence: 99%

Influences of time of day on generalization

Tandoc

Bayda

Poskanzer

et al. 2020

Preprint

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Extracting shared structure across our experiences allows us to generalize our knowledge to novel contexts. How do different brain states influence this ability to generalize? Using a novel category learning paradigm, we assess the effect of both sleep and time of day on generalization that depends on the flexible integration of recent information. Counter to our expectations, we found no evidence that this form of generalization is better after a night of sleep relative to a day awake. Instead, we observed an effect of time of day, with better generalization in the morning than the evening. This effect also manifested as increased false memory for generalized information. In a nap experiment, we found that generalization did not benefit from having slept recently, suggesting a role for circadian rhythms apart from sleep. We found, however, that this time of day effect appears to be sensitive to category structure and to task engagement more generally. We propose that a state of lowered inhibition in the morning may facilitate spreading activation between otherwise separate memories, promoting this form of generalization.

show abstract

Effects of time of day on radiological interpretation

Cited by 13 publications

References 72 publications

Examining the effects of time of day and sleep on generalization

Examining the effects of time of day and sleep on generalization

Diurnal variation of major error rates in the interpretation of abdominal/pelvic CT studies

Influences of time of day on generalization

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