Abstract：
:We present a novel, all-electric approach to record and to precisely control the activity of tens of individual presynaptic neurons. The method allows for parallel mapping of the efficacy of multiple synapses and of the resulting dynamics of postsynaptic neurons in a cortical culture. For the measurements, we combine an extracellular high-density microelectrode array, featuring 11'000 electrodes for extracellular recording and stimulation, with intracellular patch-clamp recording. We are able to identify the contributions of individual presynaptic neurons - including inhibitory and excitatory synaptic inputs - to postsynaptic potentials, which enables us to study dendritic integration. Since the electrical stimuli can be controlled at microsecond resolution, our method enables to evoke action potentials at tens of presynaptic cells in precisely orchestrated sequences of high reliability and minimum jitter. We demonstrate the potential of this method by evoking short- and long-term synaptic plasticity through manipulation of multiple synaptic inputs to a specific neuron.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Jäckel D,Bakkum DJ,Russell TL,Müller J,Radivojevic M,Frey U,Franke F,Hierlemann Adoi
10.1038/s41598-017-00981-4subject
Has Abstractpub_date
2017-04-20 00:00:00pages
978issue
1issn
2045-2322pii
10.1038/s41598-017-00981-4journal_volume
7pub_type
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