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Samenvatting Brein & Cognitie 1: Hoofdstuk 10 (326-352,356-357) en Hoofdstuk 11 (391-392)

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Hoofdstuk 10 (p.326-352, 356-357)+ Hoofdstuk 11 (p

Geluidsgolven:
• dB (decibel): amplitude van geluid → hard=groot/ hoog, zacht = klein/laag
• frequentie (Hz): duratie van een cycle




Pure tonen: geluiden die bestaan uit 1 frequentie

Het oor:
• pinna : verzamelen geluidsgolven
• trommelvlies: begint te vibreren aan de hand van geluidsgolven
• gehoorbeentjes: waar trillingen worden doorgegeven
• Cochlea: waar het trillen en wordt omgezet in impulsen
→ gevuld met vloeistof en in midden een membraan

Gehoorbeentjes: hefboom functie (zacht ook goed doorgegeven)
met als onderdelen : hamer, aambeeld, stijgbeugel.




Het Cochlea:
• ovale venster : waar geluid binnenkomt
• Ronde venster : waar de druk van de vloeistof wordt vrijgelaten
• Basale membraan: orgaan van Corti → haartjes (niet dezelfde lengte)




Mechano-electric conduction: Haarcellen zijn met
elkaar verbonden → Als ze buigen kan K+ de cel
in → depolarisatie




Hele verhaal in 1 plaatje

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Hoofdstuk 10 (326-352,356-357) en hoofdstuk 11 (391-392)
Uploaded on
February 1, 2024
Number of pages
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Written in
2023/2024
Type
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