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Related Concept Videos

Echo01:06

Echo

493
The human ear cannot distinguish between two sources of sound if they happen to reach within a specific time interval, typically 0.1 seconds apart. More than this, and they are perceived as separate sources.
Imagine the sound is reflected back to the ears. Assuming that the source is very close to the human, the difference between hearing the two sounds—the emitted sound and the reflected sound—may be more than the minimum time for perceiving distinct sounds. If this is the case,...
493
The Cochlea01:13

The Cochlea

44.6K
The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.
44.6K

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Related Experiment Video

Updated: Jun 9, 2025

Development of an Audio-based Virtual Gaming Environment to Assist with Navigation Skills in the Blind
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Acoustic cognitive map-based navigation in echolocating bats.

Aya Goldshtein1,2,3, Xing Chen4, Eran Amichai4,5

  • 1Centre for the Advanced Study of Collective Behavior, University of Konstanz, 78464 Konstanz, Germany.

Science (New York, N.Y.)
|October 31, 2024
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Summary
This summary is machine-generated.

Bats use echolocation for long-distance navigation. This study shows bats can navigate kilometers using only sound, with vision enhancing the process.

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Area of Science:

  • Zoology
  • Bioacoustics
  • Animal Navigation

Background:

  • Bats utilize echolocation for short-range orientation and obstacle avoidance.
  • The capacity of echolocation for large-scale, kilometer-range navigation remains largely unexplored.

Purpose of the Study:

  • To investigate the role of echolocation in the large-scale navigation abilities of bats.
  • To determine if bats can perform map-based navigation using solely acoustic information.
  • To assess the combined effect of echolocation and vision on bat navigation.

Main Methods:

  • Wild Kuhl's pipistrelle bats were translocated to unfamiliar locations.
  • Navigation was tracked using a novel reverse GPS system.
  • Visual, magnetic, and olfactory senses were manipulated during homing experiments.

Main Results:

  • Translocated bats successfully navigated several kilometers back to their home location.
  • Navigation was achieved using echolocation alone, indicating acoustic map-based navigation.
  • Navigation performance improved when both echolocation and vision were available.

Conclusions:

  • Bats are capable of kilometer-scale, map-based navigation primarily using echolocation.
  • Environmental acoustic information is crucial for bats to create and utilize acoustic cognitive maps.
  • Multisensory integration, particularly echolocation with vision, enhances navigational efficiency in bats.