1 - Free-Running Periods

Рет қаралды 16,319

Күн бұрын

This video was made by two trainees at UCSD's Center for Circadian Biology (Ben Sheredos and Liz Harrison) for use in the undergraduate class on circadian rhythms and biological clocks at UCSD.
We gratefully acknowledge the permission of Dr. Michael Menaker for the use of sparrow data. These data were originally published in:
Menaker, M. (1968) "Extraretinal light perception in the sparrow, I. Entrainment of the Biological Clock" PNAS 59(2): 414-421.

Пікірлер: 5

@SSSJC 3 жыл бұрын

Wow! Binge watching all the content on your channel now that I have discovered it! Thank you for putting this information out!

@_dargo06 2 жыл бұрын

thank you! your video is well explained and presented. Keep up the good content!!!

@SeaweedSoccer95 7 жыл бұрын

COOL VID MAN

@semforeman4267 7 жыл бұрын

Since locomotor activity is plotted, why does the actogram visualised belong to a diurnal animal? It's activity time is roughly from 18:00 to 06:00 right?

@BioClockStudio 7 жыл бұрын

Hi Sem! In this case, no explicit information about the light-dark schedule is included in the actogram. This means one cannot infer simply from the actogram whether the organism is nocturnal or diuranl (In principle, a superficially similar actogram could have come from a nocturnal animal). However, in this case, the original research done by Menaker did indeed involve a diurnal bird.