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{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/2940453","sourcedb":"PMC","sourceid":"2940453","source_url":"https://www.ncbi.nlm.nih.gov/pmc/2940453","text":"Compression: The major advantage of gamma alignment is that it allows all APs to be lossless compressed into a single or small number of channels/axons. By reducing the number of channels transferring different codes, the projection neurons are able to utilize the rest of the channels for transferring redundant codes, which in turn, enhances reliability. The redundant transfer is necessary for preserving the integrity of the code during long-range transmission to the cortex or between cortical areas. The compression of APs from multiple channels is accomplished by the massively divergent/convergent connections between presynaptic and postsynaptic neurons in the sensory nuclei of the thalamus (Figure 4). While synaptic convergence forces all APs from all projecting neurons to collapse onto a single/few channels/neurons, synaptic divergence distributes the same compressed AP code to multiple axons terminating in V1. Thus, the target area (V1) will receive a compressed code from each individual axon, while the parallel projection of the same APs via multiple axons will provide high redundancy. (For details on modeling the receptive field projections on V1 see Nadasdy, 2009). The next stage, reconstruction, is devoted to the decoding of the spatial information using the combined AP series with neuron-level specificity.","tracks":[{"project":"2_test","denotations":[{"id":"20859525-19668700-38434990","span":{"begin":1184,"end":1188},"obj":"19668700"}],"attributes":[{"subj":"20859525-19668700-38434990","pred":"source","obj":"2_test"}]},{"project":"0_colil","denotations":[{"id":"20859525-19668700-532863","span":{"begin":1184,"end":1188},"obj":"19668700"}],"attributes":[{"subj":"20859525-19668700-532863","pred":"source","obj":"0_colil"}]},{"project":"TEST0","denotations":[{"id":"20859525-76-84-532863","span":{"begin":1184,"end":1188},"obj":"[\"19668700\"]"}],"attributes":[{"subj":"20859525-76-84-532863","pred":"source","obj":"TEST0"}]}],"config":{"attribute types":[{"pred":"source","value type":"selection","values":[{"id":"2_test","color":"#ecd093","default":true},{"id":"0_colil","color":"#b693ec"},{"id":"TEST0","color":"#93ec9b"}]}]}}