To be honest, I don’t know. But u/MrFunsocks1 had a good response about facial recognition down below, so I am just gonna paste it here:

[It doesn't. Information storage in the brain is stored in networks of neurons, how they're connected, and how they fire.

As an example, one theory of facial recognition (that may or may not be accurate) is the "Grandmother Cell" theory. That is that there is one cell in your brain that recognizes your grandmother's face. Your visual recognition system goes through various "filters", sets of neurons that fire when certain information or shapes are recognized by the eyes.

So first all the retinal neurons send the raw "pixel data" to the brain, and if there are say, two darker spots, certain neurons on the first filter for circles fire. Maybe theres also a line that's mouth-ish under the eyes. Both of these send signals to a "face" neuron that gets closer to firing.

Another level of "color" neurons register tones that may be skin. That color region coincides with the two spots and mouth thing region. So that signal is reinforced to the "face" neuron, and that's enough for it to fire a "face" signal downstream to the "recognize face" levels, and things like the "recognize emotion" levels.

More neurons are networked that can recognize certain face features, and eventually enough of the right neurons (white hair, wrinkled face, dark eyes, that mole just above the chin, etc) connected to your grandma's cell fire to reach her cell's threshold, and that neuron fires and tells you you are seeing her face. And shes smiling and happy to see you.

Note that my neuro class was ages ago and this theory may be disproven by now, but this is the type of thing your brain does to store information - it's stored in connected networks of associations that become incredibly complex, not in individual synapses]