Westheimer responds to ‘Visual resolution: operational definitions with an eye towards historical precedence’
نویسنده
چکیده
Westheimer responds to ÔVisual resolution: operational definitions with an eye towards historical precedenceÕ There is no dispute between Carney & Klein and me about optical facts and psychophysical observations: we are struggling with nomenclature. Resolution has been traditionally understood to refer to the question ''single or double''—Robert HookeÕs double stars, 19th-century ophthalmologistsÕ minimum separable, RayleighÕs double spectral lines. It seems too late in the day to shift
منابع مشابه
Visual resolution: operational definitions with an eye towards historical precedence
The perceptual task of ‘‘resolving’’ one from two objects can be operationally defined and measured psychophysically. However, experimental methods aside, terms used to describe the measurement can have historical significance and should be chosen carefully as Westheimer (in press) points out. The term in question in this case is ‘‘resolution’’ which historically involves describing the optical...
متن کاملTowards an Operational Definition of Critical Thinking
This paper offers a state-of-the-art working definition for the concept of Critical Thinking (CT hereafter) in an attempt to provide a framework for the development of an operational definition for this complex concept. Having studied various definitions and models, proposed for CT by major figures in the field, the key defining features of this rich concept were identified and classified. Base...
متن کاملComparison between Topical and Oral Tranexamic Acid in Management of Traumatic Hyphema
Background: We sought to determine the efficacy of topical tranexamic acid (5%) in the management of traumatic hyphema.Methods: Thirty eyes with gross traumatic hyphema were enrolled in this study. The patients were treated with tranexamic acid (5%) eye drop every 6 hours for 5 days. The main outcome measures were best corrected visual acuity (BCVA), Intra-ocular pressure (IOP), day of clot abs...
متن کاملOptical superresolution and visual hyperacuity
Classically, diffraction theory sets a boundary for the resolving capacity of optical instruments. Yet some visual thresholds have values much better than the traditional resolution limit. Recent developments in superresolution, an area of optical physics and engineering with claims of transcending the stated resolution limits of optical instruments, are reviewed and their possible relevance to...
متن کاملP58: Visual Working Memory Performance Based on Saccades in Children with and without Specific Learning Disorder: An Eye-Tracking Study
Some of the previous studies show that children with SLD have deficits in visual processing and working memory. Hence, the aim of this research was to investigate problems of visual working memory based on behavioral neuroscience method, using an eye tracker device. The method of present study was ex-post facto study. The participants included couple of twelve children with SLD (mean age=10.92)...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Vision Research
دوره 45 شماره
صفحات -
تاریخ انتشار 2005