![]() For example, our pure work with comparative judgments - the sensation weighting principles behind them and the systematic errors that result - is helping to develop new ways of assessing neuropsychological insult risk, both financial and physical and aesthetic preference. Gestalt theories of perception are based on human nature being inclined to understand objects as an entire structure rather than the sum of its parts. Hallucinogen-persisting perception disorder (HPPD) features as a diagnostic category in the DSM-5, ICD-11, and other major classifications, but our knowledge of the phenomenology of the perceptual symptoms involved and the changes in consciousness during the characteristic flashbacks is limited. ![]() Research within PI involves studies conducted from both pure and applied perspectives. Likely explanations include the broad definition of hallucinations we employed, the low-key way of profiling them (i.e., as very common perceptual phenomena), and the low threshold for reporting. Perceptual Informatics is the emerging discipline that combines the two. The science of psychophysics and the engineering of information systems develop hand-in-hand. In turn, technological progress prompts scientific enquiry. ![]() Understanding informational phenomena - such as sensory computation, perceptual cognition, and communication - enables technological advances. Since computers, individuals and organisations all process information, informatics has computational, cognitive and social aspects. Informatics concerns the architecture, functioning, and interactions of natural and artificial systems that store, process and communicate information. Informatics includes the science of information, the practice of information processing, and the engineering of information systems. One of the oldest quantitative laws in psychology is Weber’s law (1834), which says that the smallest change in a natural stimulus intensity that we can perceive is proportional to the original intensity. ![]() Perception is one of the oldest fields within scientific psychology, and there are correspondingly many theories about its underlying processes. Thus perceptual informatics draws on many different disciplines with their own methodologies and perspectives, bringing together a common scientific paradigm, common engineering methods and a pervasive route from sensation to choice behaviour, technological development and practical application. Perceptual informatics concerns the process of acquiring, selecting, interpreting, and organising sensory information. ![]()
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