On these occasions, FL’s memory was good. Thus, she was able to remember events from earlier days when memory was tested covertly. FL performed differently in a number of ways from individuals who were instructed to consciously feign her pattern of memory impairment. It was also the impression of those who worked with FL that she believed she had the memory impairment that she described and that she was not intentionally feigning amnesia. On the basis of her neuropsychological findings, together with a normal neurological exam, normal MRI findings, and psychiatric evaluation, we suggest that FL exhibits a unique form of functional
amnesia and that its characterization may have been influenced by knowledge of how amnesia was depicted in a popular film. She subsequently improved (and began retaining day-to-day memory) at Johns Hopkins University Tozasertib chemical structure where she was in a supportive in-patient environment and was shown how to take control of her condition by interrupting her sleep at 4-h intervals. Published by Elsevier Ltd.”
“This study investigated the neural basis of the effect of gaze direction
on facial expression processing in children with and without ASD, using event-related potential (ERP). Children with ASD (10-17-year olds) and typically developing (TD) children (9-16-year olds) were asked to determine the emotional expressions (anger or fearful) of a facial stimulus with a direct or averted gaze, and the PLX4032 ERPs were recorded concurrently. In TD children, faces with a congruent expression and gaze direction in approach-avoidance motivation, such as an angry face with a direct gaze pentoxifylline (i.e., approaching motivation) and a fearful face with an averted gaze (i.e., avoidant motivation), were recognized more accurately and elicited larger N170 amplitudes than motivationally incongruent facial stimuli (an angry face with an averted gaze and a fearful face with a direct gaze). These results demonstrated the neural basis and time course of integration of facial expression and gaze direction in TD children and its impairment in children
with ASD. (C) 2010 Elsevier Ltd. All rights reserved.”
“Prions can be detected and quantified currently by using either immunoassays such as Western-blot. ELISA or conformation dependent immunoassay, or an infectivity assay in laboratory animals (bioassay). While immunoassays are inexpensive and rapid, they are based on the detection of PrP(Sc), the abnormal isoform of the prion protein, a surrogate marker for prion infectivity. The bioassay is considered the gold-standard analytical method for measuring prion infectivity, but it is very costly and time-consuming, involving the destruction of large numbers of animals. The use of the transgenic MovS6 cell line is described for the development of an in vitro tissue culture infectivity assay (TCIA) for prion detection and quantitation.