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Sound stimulator for memory enhancement

A sound and stimulation device technology, applied to microphones, applications, sensors, etc., to reduce power consumption, reduce safety risks, and improve efficiency

Inactive Publication Date: 2015-06-17
OTICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Stimuli out of phase with the persistent slow oscillatory rhythm remain ineffective

Method used

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  • Sound stimulator for memory enhancement
  • Sound stimulator for memory enhancement
  • Sound stimulator for memory enhancement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0111] figure 1 A first embodiment of an in-ear stimulation device 10 is shown having a first electrode 12 , a second electrode 14 , a control unit 16 , a battery 17 , and a speaker 18 . The control unit 16 includes a memory 20 , a processing unit 22 , and a bandpass filter 24 . The in-ear stimulation device 10 is positioned at the ear 26 of a user 28 (see Figure 7 ), the largest portion of the in-ear stimulation device 10 is disposed in the ear canal 30 of the user 28 . Electrodes 12 and 14 are in contact with the skin of ear canal 30 .

[0112] Electrodes 12 and 14 measure electrical activity signal 32 representing the EEG of user 28 (see Figure 5 and 6 ). The electrical activity signal 32 is received by the control unit 16, which processes the electrical activity signal 32 by detecting (33) the presence of slow oscillations 34 (see Figure 5 and 6 ). exist figure 1 In the illustrated embodiment of the in-ear stimulation device 10, Figure 5 The shown method is...

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PUM

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Abstract

The present invention regards an in-ear stimulation device (10, 10'; 10a) comprising at least one in-ear sensor (12, 14), a control unit (16), and an output transducer (18). The in-ear stimulation device (10, 10'; 10a) is configured to be worn at or on an ear (26) of a human user (28) and at least partly in an ear canal (30) of the user (28). The at least one in-ear sensor (12, 14) is arranged and configured to measure electrical activity signals (32) indicative of an electroencephalogram (EEG) of a user (28) wearing the device (10, 10'; 10a). The control unit (16) is configured to receive the electrical activity signals (32) and to detect (33) a presence of a slow oscillation (34), which is in a frequency range between 0.5 Hz and 1 Hz, in the electrical activity signals (32). The control unit (16) is further configured to trigger, in response to detecting (33) the presence of a slow oscillation (34), a generation of at least one stimulus impulse (36). The output transducer (18) is configured to receive the at least one stimulus impulse (36) and to generate a corresponding output sound (38).

Description

technical field [0001] The present invention relates to an in-ear stimulation device comprising at least one in-ear sensor, a control unit and an output transducer and configured to measure electrical activity signals representing an electroencephalogram (EEG) of a user which are analyzed and used to generate a corresponding Or output sounds originating from or synchronized with slow oscillations detected in the electrical activity signal. Background technique [0002] Oscillations of brain activity reflect the synchronous activity that organizes information processing and communication in cortical networks of neurons in a state-dependent manner, see H.-V.V.Ngo, T. Martinetz, J. Born, and M. , "Auditory Closed-Loop Stimulation of the Sleep Slow Oscillation Enhances Memory", Neuron 78, 545-553 (2013) [Ngo et al. (2013)], as in G. Buzsáki and A. Draguhn "Neuronal oscillations in cortical networks", Science 304 1926-1929 (2004), and F. Varela, J.P. Lachaux, E. Rodriguez, and ...

Claims

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Application Information

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IPC IPC(8): A61B19/00A61B5/0484A61B5/375A61B5/374
CPCA61B5/165A61B5/4812A61B5/4836A61B5/6817A61B5/725A61B5/7405A61B5/7415H04R25/02H04R2225/023H04R2410/00A61B5/316A61B5/374A61B5/375A61B5/291A61B5/369
Inventor T·伦纳
Owner OTICON
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