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Using a retina pick off from the center ofguinea pigsas a model , scientist estimate that our heart convey visual selective information to our brains at about the same rate as an Ethernet connection .
The determination is detail in the July issue of the journalCurrent Biology .
First Picture of Living Human Retina Reveals S
The guinea pigretinawas placed in a ravisher and made to " look on " movies containing four types of biologic motion , such as a salamander swimming in a armored combat vehicle of water . Electrodes appraise the electric capitulum emitted by ganglion cells in response to the clip .
The retina is a unclouded sensitive membrane that gets barrage with light entering the lens of theeye . Ganglion cells are specialised mind cellphone that relay the ocular information from the retina to other parts of the encephalon via theoptic nerve .
" It ’s the combining and pattern of spike that are sending the [ visual ] info , " articulate Vijay Balasubramsanian , a physicist at the University of Pennsylvania who was involve in the subject field .
" The patterns have various signification . We measure the patterns and work out how much information they channel , measured in bit per second , " he said .
The investigator calculate that the 100,000 ganglion cells in a guinea fuzz retina broadcast roughly 875,000 number of information per second . The human retina contains about 10 times more ganglion cells than that of guinea pigs , so it would transmit data at roughly 10 million bits per second , the researchers estimate .
This is like to an Ethernet connexion , which transmits data between computers at speeds of 10 million to 100 million bits per second .
