Sustained Activity Encoding Working Memories: Not Fully Distributed
| Autor: | Julio Martinez-Trujillo, Matthew L. Leavitt, Diego Mendoza-Halliday |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Neurons
0301 basic medicine Sensory processing Property (programming) Working memory General Neuroscience medicine.medical_treatment Brain Sensory system Neurophysiology Synaptic Transmission 03 medical and health sciences Memory Short-Term 030104 developmental biology 0302 clinical medicine Encoding (memory) medicine Animals Humans Psychology Association (psychology) Neuroscience 030217 neurology & neurosurgery Coding (social sciences) |
| Zdroj: | Trends in Neurosciences. 40:328-346 |
| ISSN: | 0166-2236 |
| DOI: | 10.1016/j.tins.2017.04.004 |
| Popis: | Working memory (WM) is the ability to remember and manipulate information for short time intervals. Recent studies have proposed that sustained firing encoding the contents of WM is ubiquitous across cortical neurons. We review here the collective evidence supporting this claim. A variety of studies report that neurons in prefrontal, parietal, and inferotemporal association cortices show robust sustained activity encoding the location and features of memoranda during WM tasks. However, reports of WM-related sustained activity in early sensory areas are rare, and typically lack stimulus specificity. We propose that robust sustained activity that can support WM coding arises as a property of association cortices downstream from the early stages of sensory processing. |
| Databáze: | OpenAIRE |
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