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Related Concept Videos

Auditory Perception01:17

Auditory Perception

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The auditory system is essential for sound perception, utilizing various critical structures. When sound waves enter the outer ear, they travel through the ear canal and cause the eardrum to vibrate. These vibrations are then transmitted to the middle ear, where three tiny bones – the malleus, incus, and stapes – amplify the sound. This amplification is crucial, as it ensures that the sound vibrations are strong enough to be conveyed to the inner ear. These vibrations then reach the...
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Subliminal Perception01:15

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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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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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Perception01:28

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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 of Perception01:21

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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 Auditory Ossicles01:11

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The auditory ossicles of the middle ear transmit sounds from the air as vibrations to the fluid-filled cochlea. The auditory ossicles consist of two malleus (hammer) bones, two incus (anvil) bones, and two stapes (stirrups), one on each side. These bones develop during the fetal stage and are the ones to ossify first. They are fully mature at birth and do not grow afterward.
The aptly named stapes look very much like a stirrup. The three ossicles are unique to mammals, and each plays a role in...
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Optogenetic Stimulation of the Auditory Nerve
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Auditory Perception: Laurel and Yanny Together at Last.

D Pressnitzer1, J Graves1, C Chambers1

  • 1Laboratoire des Systèmes Perceptifs, Département d'études cognitives, ENS, PSL University, CNRS, Paris, France.

Current Biology : CB
|July 11, 2018
PubMed
Summary
This summary is machine-generated.

The Laurel/Yanny auditory illusion shows how our brains interpret ambiguous sounds, leading to different perceptions from the same audio input. This highlights that perception is an active inference process, even when we don't notice the ambiguity.

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Area of Science:

  • Auditory Perception
  • Cognitive Science
  • Neuroscience

Background:

  • Recent widespread attention on the 'Laurel' or 'Yanny' auditory illusion.
  • Demonstrates how identical auditory stimuli can yield divergent perceptual outcomes.
  • Highlights the subjective nature of sensory information processing.

Purpose of the Study:

  • To investigate the cognitive mechanisms underlying the 'Laurel'/'Yanny' auditory illusion.
  • To explore how inherent ambiguity in sensory data is resolved.
  • To understand the inferential nature of human perception.

Main Methods:

  • Analysis of the ambiguous auditory speech utterance.
  • Review of user-reported perceptual experiences.
  • Theoretical framework integrating signal processing and cognitive inference.

Main Results:

  • Confirmation of dichotomous perception ('Laurel' vs. 'Yanny') for the identical audio stimulus.
  • Evidence that perception is an active inferential process, not passive reception.
  • Demonstration that sensory ambiguity, though often unnoticed, significantly shapes perception.

Conclusions:

  • The 'Laurel'/'Yanny' phenomenon exemplifies how the brain constructs reality from ambiguous sensory input.
  • Perceptual outcomes are a result of cognitive inferences, influenced by individual factors.
  • Understanding these inferential processes is key to understanding perception.