John P. K. Bernstein

  • Citations Per Year
Learn More
The cortisol suppression index (CSI), a ratio of predexamethasone to postdexamethasone plasma cortisol levels, has been suggested as an alternate approach to the use of the DST in the diagnosis of depression. Forty-eight psychiatric inpatients were prospectively studied to compare the utility of the CSI to results obtained using Carroll's fixed values at 4(More)
OBJECTIVE To examine associations between daytime and insomnia-related sleep problems with different domains of cognitive functioning and determine whether subclinical depressive symptoms and age moderate these associations. METHOD A total of 903 cognitively healthy older adults enrolled in a longitudinal aging study completed the UDS neuropsychological(More)
INTRODUCTION Depressive symptoms are common in patients assessed by neuropsychologists, and these symptoms can have an effect on cognitive functioning. Discrepancies between patient- and informant-reported depressive symptoms have been found in some diagnostic groups, raising concerns as to the value of assessing depressive symptoms via self-report alone.(More)
The cortisol suppression index (CSI) is a ratio of pre- to postdexamethasone plasma cortisol concentrations. In a sample of 24 psychiatric inpatients, an 8 a.m. CSI detected 66% of patients with major depression. Further studies with larger samples and additional controls, including normal subjects, are suggested to validate these prospective findings. This(More)
The King-Devick test (K-D) was introduced in 2011 as a quick, easy and cost-effective way to screen for a concussion. Relying on differences in visual scanning between a baseline and post-injury examination to discern a concussion, the test has been found to be sensitive to concussions immediately (within minutes) following injury. The aim of this paper was(More)
Alzheimer's disease (AD) ranks as the 6th leading cause of death in the United States, yet unlike other diseases in this category, there are no disease-modifying medications for AD. Currently there is significant interest in exploring the benefits of pharmacological treatment before the onset of dementia (e.g., in those with mild cognitive impairment);(More)
BACKGROUND Several barriers exist in the recruitment of individuals with a history of mild traumatic brain injury (mTBI). The current study is the first to examine whether crowdsourcing, which has been used in other clinical populations, is useful in the recruitment of those with mTBI. OBJECTIVE To examine whether Amazon's Mechanical Turk (MTurk), an(More)
  • 1