Visual Physiology: Perceived Size Looms Large

نویسندگان

  • Sean P. MacEvoy
  • David Fitzpatrick
چکیده

Visual illusions tell us that size perception depends heavily upon complex contextual cues, often thought to be extracted by brain areas high in the visual hierarchy. Now, a new study shows that perceived size is reflected in activity as early as the primary visual cortex.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Perceived afterimage size in depth cue-conflict condition

In depth cue-conflict conditions, various depth cues could represent different extents of depth. Previous studies have investigated the perceived size of negative afterimage in depth cue-correlated conditions in which different cues introduce almost the same amounts of depth to the visual system. This study examined the perceived size of the afterimage in the human observers in a condition that...

متن کامل

Perceived afterimage size in depth cue-conflict condition

In depth cue-conflict conditions, various depth cues could represent different extents of depth. Previous studies have investigated the perceived size of negative afterimage in depth cue-correlated conditions in which different cues introduce almost the same amounts of depth to the visual system. This study examined the perceived size of the afterimage in the human observers in a condition that...

متن کامل

Successful Propranolol Treatment of a Large Size Infantile Hemangioma of the Face Causing Recurrent Bleeding and Visual Field Disruption

A 29 days old Pakistani female infant was presented to our outpatient department with two weeks history of a rapidly progressing large size facial hemangioma involving most of the right cheek and right eyelids. The infant was unable to open the right eye. There was also a small hemangioma on the right second toe. Additionally, three similar lesions were found on the right side of the palate and...

متن کامل

The source of visual size adaptation.

Size adaptation describes the tendency of the visual system to adjust neural responsiveness of size representations after prolonged exposure to particular stimulations. A larger (or smaller) adaptor stimulus influences the perceived size of a similar test stimulus shown subsequently. Size adaptation may emerge on various processing levels. Functional representations of the adaptor to which the ...

متن کامل

Experts’ Opinion on Factors Affecting the Selection of Field of Study by High School Students  

Given the concerns of parents, students, and the educational system as a whole, in regards to the selection of field of study by the high school students, factors affecting these selections become of interest to all those involved. Based on the socio-educational foundation of the study, a group of 25 experts in education and field selection in Ilam Province was interviewed. Findings consist of ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Current Biology

دوره 16  شماره 

صفحات  -

تاریخ انتشار 2006