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Related Concept Videos

Factors Affecting Perception01:25

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Perception is influenced by perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, refers to the tendency to perceive things in a particular way, influenced by previous experiences and expectations. This phenomenon affects the interpretation of stimuli, creating a set of mental tendencies and assumptions that impact sensory perceptions of sound, taste, touch, and sight.
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Perception is a fundamental psychological process that enables individuals to organize, interpret, and consciously experience sensory information. This process is crucial for understanding and interacting with the world around us. It includes both bottom-up and top-down processing, each playing a distinct role in how we perceive our environment.
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Perceiving others accurately is fundamental to effective communication and relationship-building. Social perception, a key concept in social psychology, refers to the cognitive processes through which individuals gather and interpret information about others to understand their actions, intentions, and motivations. This process extends beyond spoken words and overt behaviors, incorporating subtle nonverbal cues and contextual factors.Nonverbal Cues and Their SignificanceNonverbal cues play a...
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The somatosensory system is the central and peripheral nervous system component that senses and processes touch, pressure, pain, temperature, and body position or proprioception. The process of sensation takes place at three levels:
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Subliminal perception refers to the processing of sensory information that occurs below the level of conscious awareness. Researchers study subliminal perception by presenting a stimulus, such as a word or image, very quickly, typically around 50 milliseconds. This rapid presentation is often followed by another stimulus, such as a pattern of dots or lines, which blocks further mental processing of the initial stimulus. As a result, if participants cannot identify the initial stimulus better...
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The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...
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Olfactory Context Dependent Memory: Direct Presentation of Odorants
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The extended present: an informational context for perception.

Peter A White1

  • 1School of Psychology, Cardiff University, Tower Building, Park Place, Cardiff CF10 3YG, Wales, UK.

Acta Psychologica
|August 28, 2021
PubMed
Summary
This summary is machine-generated.

The extended present, a new hypothesis, defines subjective experience not by duration but by a thematically connected information structure. This structure, held in memory, enables complex perception and action.

Keywords:
Hierarchical structure processingSpecious presentSubjective presentTemporal information processingWorking memory

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Philosophy of Mind

Background:

  • Previous theories proposed a subjective present based on time duration.
  • These models did not fully capture the complexity of present moment experience.

Purpose of the Study:

  • To propose a new hypothesis for the subjective present, termed the extended present.
  • To define the extended present based on information structure rather than temporal duration.
  • To explore the functional role of the extended present in cognition.

Main Methods:

  • Conceptual analysis and hypothesis formulation.
  • Review of evidence from music perception, language processing, action, and calculation.
  • Proposal of a mechanism for temporal information representation.

Main Results:

  • The extended present is characterized by thematic connection, hierarchical organization, and temporal marking (ordinal and duration).
  • Hierarchical structure processing and capacity limits define temporal boundaries.
  • Evidence supports the role of hierarchical analysis in various cognitive domains.

Conclusions:

  • The extended present serves as an informational context for understanding perceptual input.
  • It enables the perception and generation of complex structures in language, action, music, and calculation.
  • This model offers a novel framework for understanding the subjective experience of time and cognition.