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Related Concept Videos

Introducing Social Perception01:29

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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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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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Gestalt principles provide a framework for understanding how humans perceive objects as unified wholes within their context. These principles are essential in explaining the cognitive processes that make sense of complex visual stimuli by organizing them into coherent groups. One fundamental principle is proximity, which posits that objects located close to each other are perceived as a collective group. For instance, when dots are positioned near one another, the visual system interprets them...
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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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Perception as a closed-loop convergence process.

Ehud Ahissar1, Eldad Assa1

  • 1Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel.

Elife
|May 10, 2016
PubMed
Summary
This summary is machine-generated.

Perception is a dynamic, closed-loop process where the organism and environment interact continuously. This challenges the traditional open-loop view and offers new insights into how we perceive the world.

Keywords:
active sensingdirect perceptiondynamic perceptionembodied cognitioneye movementshumanhypothesisinvariant representationmouseneurosciencepredictionsratwhisking

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Robotics

Background:

  • Traditional models view sensory organs as the first step in a linear perception pathway.
  • This open-loop model, where sensory input is processed independently of downstream activity, is increasingly challenged by empirical evidence.
  • Behavioral and anatomical data suggest a more interactive process.

Purpose of the Study:

  • To propose a new hypothesis for perception as a closed-loop dynamical process.
  • To challenge the established open-loop perception model.
  • To explore the integration of organism and environment in perception.

Main Methods:

  • Formulated a closed-loop perception (CLP) hypothesis.
  • Discussed the consistency of CLP with existing empirical data.
  • Demonstrated the synthesis of CLP in a robotic system.

Main Results:

  • The closed-loop perception hypothesis integrates organism-environment interactions.
  • CLP converges towards stable organism-environment steady-states.
  • The hypothesis is consistent with empirical data and can be modeled robotically.

Conclusions:

  • Perception is best described as a closed-loop dynamical process, not a linear open-loop one.
  • This framework offers a new perspective on sensory processing and internal percept formation.
  • The study proposes testable predictions to differentiate between open-loop and closed-loop perception models.