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Perceptual Asynchrony
Perceptual asynchrony refers to the phenomenon of two simultaneously presented attributes of the visual world being perceived by humans asynchronously instead of simultaneously. Perceptual asynchrony was first demonstrated in 1997 by Konstantinos Moutoussis and Semir Zeki. The Moutoussis and Zeki provided evidence that people perceive the color and direction of motion of a visual stimulus with a time lag - they may perceive the color before the direction of motion. They quantified this time gap to be between 70 – 80 milliseconds. Description The experiments through which perceptual asynchrony was derived were pairing experiments in which subjects are asked to determine the color and direction of a single stimulus that is moving up and down (or right and left) and changing its color from, say red to green, while doing so – the change in the color and direction of motion being in and out of phase with respect to each other. Minor variations of the 1997 experiment have yi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perception
Perception () is the organization, identification, and interpretation of sensory information in order to represent and understand the presented information or environment. All perception involves signals that go through the nervous system, which in turn result from physical or chemical stimulation of the sensory system.Goldstein (2009) pp. 5–7 Vision involves light striking the retina of the eye; smell is mediated by odor molecules; and hearing involves pressure waves. Perception is not only the passive receipt of these signals, but it is also shaped by the recipient's learning, memory, expectation, and attention. Gregory, Richard. "Perception" in Gregory, Zangwill (1987) pp. 598–601. Sensory input is a process that transforms this low-level information to higher-level information (e.g., extracts shapes for object recognition). The process that follows connects a person's concepts and expectations (or knowledge), restorative and selective mechanisms (such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synchronization
Synchronization is the coordination of events to operate a system in unison. For example, the conductor of an orchestra keeps the orchestra synchronized or ''in time''. Systems that operate with all parts in synchrony are said to be synchronous or ''in sync''—and those that are not are '' asynchronous''. Today, time synchronization can occur between systems around the world through satellite navigation signals and other time and frequency transfer techniques. Navigation and railways Time-keeping and synchronization of clocks is a critical problem in long-distance ocean navigation. Before radio navigation and satellite-based navigation, navigators required accurate time in conjunction with astronomical observations to determine how far east or west their vessel traveled. The invention of an accurate marine chronometer revolutionized marine navigation. By the end of the 19th century, important ports provided time signals in the form of a signal gun, flag, or dropping time ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semir Zeki
Semir Zeki FMedSci FRS is a British and French neurobiologist who has specialised in studying the primate visual brain and more recently the neural correlates of affective states, such as the experience of love, desire and beauty that are generated by sensory inputs within the field of neuroesthetics. He was educated at University College London , mottoeng = Let all come who by merit deserve the most reward , established = , type = Public research university , endowment = £143 million (2020) , budget = ... (UCL) where he was Henry Head Research Fellow of the Royal Society before being appointed Professor of Neurobiology. Since 2008 he has been Professor of Neuroesthetics at UCL. Early work Zeki's early work was mainly anatomical in nature and consisted in charting visual areas in the primate (monkey) brain by studying their connections, leading him to define several visual areas lying an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
