Nikos K. Logothetis

This paper explains the origin of body-part centric receptive fields using reinforcement learning and shows how they form a short-term model of the near-body environment.

This study shows that neural networks optimized for efficient coding exhibit criticality signatures near optimal noise levels, linking efficient coding and criticality theories.

The paper studies how mouse V1 neurons respond to the illusory 'darker than black' neon color spreading illusion, finding that a majority of neurons respond with direction tuning and phase shifts, indicating V1 involvement in illusory brightness processing.

The paper investigates how prefrontal cortical states influence conscious perception by analyzing neural activity during binocular rivalry.

The paper shows that perceptual attention in one sensory modality affects subsequent outcome-based learning in another modality by altering cortico-cortical interactions in rats.

This study examines the effects of three water restriction schedules on rodent growth, hydration, and stress hormone levels over 80 days, finding no dehydration but differential stress responses.

The paper presents a subcortical atlas for rhesus macaques, SARM, aligned to a population template, and validates it with fMRI data.

The paper builds a neural mass model of PGO waves to show how sleep stages influence cortical plasticity through bidirectional synaptic changes.

The paper identifies top-down control of locus coeruleus activity by prefrontal cortex high gamma oscillations during anesthesia in rats.

This paper introduces GPLA to reduce the dimensionality of spike-field coupling data and demonstrates its utility in linking neural activity to biophysical circuit properties.

The paper examines the spatial relationship between architectonic boundaries and tract-tracing labeling in the macaque insula, validating a prior cyto- and myelo-architectonic partition.

The paper identifies distinct ensembles in the locus coeruleus that evoke different cortical states in rats using non-negative matrix factorization.

Prefrontal ensemble spiking in macaques during no-report binocular rivalry carries the currently perceived stimulus, decoded about as accurately as when the same stimuli were shown without competition.

This paper introduces a method to estimate single-neuron visual receptive field sizes in humans using fMRI, finding smaller sizes compared to population-based estimates.

This study investigates the neuromodulatory function of the locus coeruleus in rats, finding that most LC neurons do not synchronize and that synchronized activity is restricted to specific projection patterns.

The paper investigates how the organization of hV5/MT+ changes in patients with V1 lesions and finds that residual visual activity in hV5/MT+ may originate from V1 or bypass pathways, but does not ensure conscious vision.

The paper shows non-monotonic spatial correlation structures in prefrontal cortex neurons during visual stimulation, challenging the idea of uniform spatial decay in cortical connectivity.

This study shows that the timing of hemodynamic initial-dip and response better reflects spiking activity than amplitude in anesthetized monkeys.

This study identifies the initial-dip in neuroimaging signals as primarily driven by a decrease in total-hemoglobin, coupled to localized spiking activity.

The paper examines gamma-band neuronal coherence in macaque primary visual cortex and finds it correlates more with firing rate than LFP oscillations, suggesting adaptive sensitivity changes maintain spatial resolution.