نتایج جستجو برای: gamma discrimination

تعداد نتایج: 186928  

Journal: :Journal of abnormal psychology 2016
Abigail Dickinson Michael Bruyns-Haylett Richard Smith Myles Jones Elizabeth Milne

While perception is recognized as being atypical in individuals with autism spectrum conditions (ASC), the underlying mechanisms for such atypicality are unclear. Here we test the hypothesis that individuals with ASC will show enhanced orientation discrimination compared with neurotypical observers. This prediction is based both on anecdotal report of superior discriminatory skills in ASC and a...

Journal: :Journal of neurophysiology 2010
Leslie M Kay Jennifer Beshel

We previously showed that in a two-alternative choice (2AC) task, olfactory bulb (OB) gamma oscillations (approximately 70 Hz in rats) were enhanced during discrimination of structurally similar odorants (fine discrimination) versus discrimination of dissimilar odorants (coarse discrimination). In other studies (mostly employing go/no-go tasks) in multiple labs, beta oscillations (15-35 Hz) dom...

2010
Leslie M. Kay Jennifer Beshel

26 27 We previously showed that in a 2-alternative choice (2AC) task, olfactory bulb (OB) 28 gamma oscillations (~70 Hz in rats) were enhanced during discrimination of structurally 29 similar odorants (fine discrimination) vs. discrimination of dissimilar odorants (coarse 30 discrimination). In other studies (mostly employing go/no-go tasks) in multiple labs, beta 31 oscillations (15-35 Hz) dom...

Journal: :Antimicrobial agents and chemotherapy 2009
Christopher M Bailey Rajesh Kasiviswanathan William C Copeland Karen S Anderson

The R964C mutation of human DNA polymerase gamma was recently linked to stavudine (d4T)-mediated mitochondrial toxicity. We utilized pre-steady-state kinetics to determine the effect of this mutation on incorporation of natural substrate dTTP and the active metabolite of d4T (d4TTP). The R964C polymerase gamma holoenzyme demonstrated a 33% decrease in dTTP incorporation efficiency and a threefo...

2010
Morteza Khodabin Alireza Ahmadabadi

In this paper, the generalized gamma (GG) distribution that is a flexible distribution in statistical literature, and has exponential, gamma, and Weibull as subfamilies, and lognormal as a limiting distribution is introduced. The power and logarithmic moments of this family is defined. A new moment estimation method of parameters of GG family using it’s characterization is presented, this metho...

Journal: :Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 2015

Journal: :Brain stimulation 2012
Bence Laczó Andrea Antal Robert Niebergall Stefan Treue Walter Paulus

Spatial visual attention enhances information processing within its focus. Vision at an attended location is faster, more accurate, of higher spatial resolution, and has an enhanced sensitivity for fine changes. Earlier hypotheses suggest that the neuronal mechanisms of these processes are based on the interactions among different neuronal groups by means of cortical oscillations in the gamma r...

Journal: :Proceedings. Biological sciences 2006
David Alais Concetta Morrone David Burr

Current models of attention, typically claim that vision and audition are limited by a common attentional resource which means that visual performance should be adversely affected by a concurrent auditory task and vice versa. Here, we test this implication by measuring auditory (pitch) and visual (contrast) thresholds in conjunction with cross-modal secondary tasks and find that no such interfe...

Journal: :NeuroImage 2009
Barbara F. Händel Thomas Haarmeier

Cortical activity such as recorded by EEG or MEG is characterized by ongoing rhythms that encompass a wide range of temporal and spatial scales. Recent studies have suggested an oscillatory hierarchy with faster oscillations being locked to preferred phases of underlying slower waves, a functional principle applied up to the level of action potential generation. We here tested the idea that amp...

Journal: :Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 2011

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