15 papers · ranked by Valyu relevance
Reinhard Werth, Thomas Jacobsen, Clara Casco
Although subjective conscious experience and introspection have long been considered unscientific and banned from psychology, they are indispensable in scientific practice. These terms are used in scientific contexts today; however, their meaning remains vague, and earlier objections to the distinction between…
Jihane Homman-Ludiye, James A. Bourne
The integration of the visual stimulus takes place at the level of the neocortex, organized in anatomically distinct and functionally unique areas. Primates, including humans, are heavily dependent on vision, with approximately 50% of their neocortical surface dedicated to visual processing and possess many more visual…
Cyriel M. A. Pennartz, Matthijs N. Oude Lohuis, Umberto Olcese
The definition of the visual cortex is primarily based on the evidence that lesions of this area impair visual perception. However, this does not exclude that the visual cortex may process more information than of retinal origin alone, or that other brain structures contribute to vision. Indeed, research across the…
Silvio Ionta
Vision is the main entrance for environmental input to the human brain. Even if vision is our most used sensory modality, its importance is not limited to environmental exploration. Rather it has strong links to motor competences, further extending to cognitive and social aspects of human life. These multifaceted…
Wen Qin, Chunshui Yu
The visual cortex has been traditionally considered as a stimulus-driven, unimodal system with a hierarchical organization. However, recent animal and human studies have shown that the visual cortex responds to non-visual stimuli, especially in individuals with visual deprivation congenitally, indicating the supramodal…
Henrique Soares Dutra Oliveira, Danielle Calil de Sousa, Sarah Teixeira Camargos, Francisco Cardoso + 1 more
'Sarah Teixeira Camargos' 'Francisco Cardoso' 'Paulo Caramelli'] Title: ABSTRACT. Vision is a sensory resource that enables the creation of an internal model for perceiving the external world. The act of seeing is much more than the mere process of light reflection on the retina. Higher-order visual areas play a…
Fuyu Wang, Peng Wang, Yuyang Liu, Tao Zhou + 2 more
1## INTRODUCTION Neuroplasticity means the inherently dynamic biological ability of the central nervous system to develop maturation, to reshape structurally and functionally in related to experience, and to adapt after injury. The human visual cortex is the good tool to study the development and plasticity of the…
Wen Qin, Yong Liu, Tianzi Jiang, Chunshui Yu + 1 more
Visual experience plays an important role in the development of the visual cortex; however, recent functional imaging studies have shown that the functional organization is preserved in several higher-tier visual areas in congenitally blind subjects, indicating that maturation of visual areas depend unequally on visual…
Robert Friedman
Here is a review of several empirical examples of information processing that occur in the primate cerebral cortex. These include visual processing, object identification and perception, information encoding, and memory. Also, there is a discussion of the higher scale neural organization, mainly theoretical, which…
Huijun Pan, Shen Zhang, Deng Pan, Zheng Ye + 5 more
'Qin Wang' 'Qingyan Sun' 'Tianmiao Hua'] Previous studies indicate that top-down influence plays a critical role in visual information processing and perceptual detection. However, the substrate that carries top-down influence remains poorly understood. Using a combined technique of retrograde neuronal tracing and…
RICARDO GATTASS, BRUSS LIMA, JULIANA G.M. SOARES, LESLIE G. UNGERLEIDER
'LESLIE G. UNGERLEIDER'] Anatomical and electrophysiological studies have provided us with detailed information regarding the extent and topography of the primary (V1) and secondary (V2) visual areas in primates. The consensus about the V1 and V2 maps, however, is in sharp contrast with controversies regarding the…
MARTIN I. SERENO, COLIN T. MCDONALD, JOHN M. ALLMAN
Dense retinotopy data sets were obtained by microelectrode visual receptive field mapping in dorsal and lateral visual cortex of anesthetized owl monkeys. The cortex was then physically flatmounted and stained for myelin or cytochrome oxidase. Retinotopic mapping data were digitized, interpolated to a uniform grid…
Mark R Pennick, Rajesh K Kana
Visual information is processed in the brain primarily through two distinct pathways, the dorsal and the ventral visual streams. The present functional magnetic resonance imaging study investigated the specialization and integration of dorsal and ventral streams using tasks of object recognition and location detection.…
Eduardo Sturzeneker Trés, Sonia Maria Dozzi Brucki
concepts PROCESSAMENTO VISUOESPACIAL: UMA REVISÃO DE CONCEITOS BÁSICOS A ATUAIS Authors: ['Eduardo Sturzeneker Trés' 'Sonia Maria Dozzi Brucki'] Introduction Visuospatial processing is a fundamental aspect in human cognition, belonging to a complex and intricate network. It is, in other words, one of the building…
Bhavin R. Sheth, Ryan Young
Evidence is strong that the visual pathway is segregated into two distinct streams-ventral and dorsal. Two proposals theorize that the pathways are segregated in function: The ventral stream processes information about object identity, whereas the dorsal stream, according to one model, processes information about…