How much memory our brain can store or how many gb of space is

there in our brain?

How data is stored in hard-drive

Memory saved in brain as circuit of neurons.

When electricity flows through a circuit, we remember the memory associated

with that circuit

100 billion x 1000 links/neuron = 100 trillion= 100 Tb (assuming each link as 1byte)

100 Tb

Complex neuron circuits in brain

As neurons intertwine, number of possible connection exponentially

increases, hence few say, we have many petabyte memory

(1 Pb= 1m Gb)

Data stored in hard-drive as magnetic bits

When we remember an event, brain assemble data

from different region to create a memory similar to

original event

In real Distorted memory

As our memory is recreated on recall, it may differ from real event means our memory may be wrong

Sometimes brain uses same data to recreate similar memories, it doesn’t make duplicate circuits for same kind of event, hence it is hard to find difference between similar

type of memories

IBM Blue Gene/Q super computer simulated 530 billion neurons & 100 trillion synapses in 2012, yet it was 1500 time

slower in processing speed comparing to brain

Our brain recreates memory from bits and pieces on-the-fly, same kind of memories are assigned common circuit, no

duplication, only important details needed to recreation is saved, not pixel by pixel, bit by bit (as PC saves data),hence

memory isn’t vivid and accurate but this mechanism gives us virtually unlimited storing opportunity

Forgotten long term memory can be retrieved using

hypnosis, so they are not destroyed, we just lose retrieval cue because of

change in synapses

The Journal

Any fool can know. The point is to understand

Albert Einstein

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MrScientificMind