ReviewFrontiers in neuroscience2023
Characterization of extracellular spike waveforms recorded in wallaby primary visual cortex.
Review in Frontiers in neuroscience, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- SpikeCleaner: An Algorithm to Label Unit Quality After Automated Spike Sorting.bioRxiv : the preprint server for biology · 2026Article
- Resting fMRI functional connectivity reflects fluctuations in inhibitory interneuron activity.bioRxiv : the preprint server for biology · 2026Article
- Extracellular Spike Waveforms: Morphology, Biophysics, and Classification Strategies.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026Review
- Alpha Modulation of Spiking Activity Across Multiple Brain Regions in Mice Performing a Tactile Selective Detection Task.The European journal of neuroscience · 2025Article
- Ionic Direct Current Enables Millimeter- and Millisecond-Scale Cortical Gain Control in vivo.bioRxiv : the preprint server for biology · 2025Article
- Brain stimulation preferentially influences long-range projections.Science advances · 2025Article
- Functional role of cell classes in monkey prefrontal cortex after learning a working memory task.Communications biology · 2025Article
- Feature selectivity and invariance in marsupial primary visual cortex.The Journal of physiology · 2025Article
- MEA-Based Graph Deviation Network for Early Autism Syndrome Signatures in Human Forebrain Organoids.Cyborg and bionic systems (Washington, D.C.) · 2025Article
- Metformin improves age-related visual cortex dysfunction in mice by reducing noise correlation in the primary visual cortex.Frontiers in aging neuroscience · 2025Article
- The wave nature of the action potential.Frontiers in cellular neuroscience · 2025Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Extracellular recordings were made from 642 units in the primary visual cortex (V1) of a highly visual marsupial, the Tammar wallaby. The receptive field (RF) characteristics of the cells were objectively estimated using the non-linear input model (NIM), and these were correlated with spike shapes. We found that wallaby cortical units had 68% regular spiking (RS), 12% fast spiking (FS), 4% triphasic spiking (TS), 5% compound spiking (CS) and 11% positive spiking (PS). RS waveforms are most often associated with recordings from pyramidal or spiny stellate cell bodies, suggesting that recordings from these cell types dominate in the wallaby cortex. In wallaby, 70-80% of FS and RS cells had orientation selective RFs and had evenly distributed linear and nonlinear RFs. We found that 47% of wallaby PS units were non-orientation selective and they were dominated by linear RFs. Previous studies suggest that the PS units represent recordings from the axon terminals of non-orientation selective cells originating in the lateral geniculate nucleus (LGN). If this is also true in wallaby, as strongly suggested by their low response latencies and bursty spiking properties, the results suggest that significantly more neurons in wallaby LGN are already orientation selective. In wallaby, less than 10% of recorded spikes had triphasic (TS) or sluggish compound spiking (CS) waveforms. These units had a mixture of orientation selective and non-oriented properties, and their cellular origins remain difficult to classify.
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