memory load
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Human Single-Neuron recordings reveal neuronal mechanisms of Working Memory
Working memory (WM) is a fundamental human cognitive capacity that allows us to maintain and manipulate information stored for a short period of time in an active form. Thanks to a unique opportunity to record activity of neurons in humans during epilepsy monitoring we could test neuronal mechanisms of this cognitive capacity. We showed that firing rate of image selective neurons in Medial Temporal Lobe persists through maintenance periods of working memory task. This activity was behaviorally relevant and formed attractors in its state-space. Furthermore, we showed that firing rate of those neurons phase lock to ongoing slow-frequency oscillations. The properties of phase locking are dependent on memory content and load. During high memory loads, the phase of the oscillatory activity to which neurons phase lock provides information about memory content not available in the firing rate of the neurons.
The neurocognitive role of working memory load when motivation affects instrumental learning
COSYNE 2022
The neurocognitive role of working memory load when motivation affects instrumental learning
COSYNE 2022
Differential effects of working memory load during motor decision-making on planning and execution of goal-directed pointing movements
FENS Forum 2024
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