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Lecture

PSYA01 - Lecture 03 - Sep 9.docx

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Department
Psychology
Course
PSYA01H3
Professor
Steve Joordens
Semester
Winter

Description
PSYA01Lecture039September2013Lecture2PsychologyTheBirthandEarlyYearsPreWorldWarIGermanyoStrongeconomicallypowerfulcountrysuchcountriessometimeslookforinterestingwaystousemoneyopentonewideasandnewdirectionsincludingacademiaoAlandwherenewideaswouldbesupportedwherepsychologywasbornHermannvonHelmholtz18211894oMeasuringSpeedofNeuralImpulsesInformationtravelsquicklythroughnervecellsHelmholtzwantedtoknowexactlyhowfasthisoccurredSeemedimpossiblebecausehumansreactveryquicklyandtheonlyinstrumentavailabletomeasuretimewasastopwatchAchainofpeopleheldhandsandwhentheyfeelonepersonsqueezeonehandtheysqueezetheirotherhanduntiltheendofthechainisreachedthedistanceanddurationofthetestwasusedtodeterminethespeedofneuralimpulsesResultsshowedhumansareslowerthanexpectedBiologicalmessagetransmissionismuchslowerthanthroughawireErnstWeber17951878oPsychophysicistoWhiletheworldmeasureshowthingsareoutintheworldWeberwantedtomeasurehowthingswereinsidethemindoInphysicsandchemistryyoucanoftendirectlymeasurewhatyouareinterestedinOpentoobjectivemeasurementyoucanseeitallNumberscanbetrustedoInpsychologyyouareoft
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