occurs in postsynaptic membrane receptor localization to synapse postsynaptic neurotransmitter receptor diffusion trapping GO:0098970 biological_process The process by which diffusing neurotransmitter receptor becomes trapped at the postsynaptic specialization membrane. This is typically due to interaction with components of the post-synaptic specialization. regulation of postsynaptic membrane neurotransmitter receptor levels neurotransmitter receptor diffusion trapping postsynaptic specialization membrane