Skip to main content
Fig. 5 | SpringerPlus

Fig. 5

From: A framework for the first-person internal sensation of visual perception in mammals and a comparable circuitry for olfactory perception in Drosophila

Fig. 5

Diagram showing relative locations of formation of percept and non-specific semblances for C-semblance within a cortical column. Cortical columns do not include the neuronal layer I, one of the locations where NMDA spikes occur. Inter-postsynaptic functional LINKs expected to be responsible for NMDA spikes can contribute to the horizontal component for the surface-recorded potentials. Axonal terminals from lateral geniculate neurons (LGNs) synapse to the dendritic spines of the neurons of the remaining cortical neuronal orders. These synapses within the horizontally restricted volume of a column increase the possibility for visual stimuli from two infinitesimally close locations from an object to arrive at both ends of the inter-postsynaptic functional LINK to form overlapping stimulus-semblance U-loops in opposite directions and induce perceptons. Potentials from the inter-LINKed postsynapses can fire their neurons if the neurons are kept at subthreshold activated state short of very minimal voltage. Induction of percepton is a systems property of systems where lateral spread of activity through the inter-postsynaptic functional LINK contribute to the horizontal component and synaptic spread of activity contribute to the vertical component of oscillating potentials. The recurrent collaterals from different neuronal orders to the lower neuronal orders can contribute to the horizontal component of oscillation surface-recorded potentials. RC recurrent collateral, L1 layer 1 cortical neuron. A and C Presynaptic terminals of the LGNs. B and D Postsynaptic terminals of the pyramidal neurons of layers III and IV. IILPS: Islet of inter-LINKed postsynapses. Glu: glutamate, Ach: acetyl choline, 5HT: 5-hydroxy tryptamine (serotonin), NE: nor-epinephrine (Figure modified from Vadakkan 2015a)

Back to article page