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A regularity index for dendrites - local statistics of a neuron's input space

November 12, 2018

A regularity index for dendrites - local statistics of a neuron's input space

Image credit: Anton-Sanchez et al.

11/15/2018

Research Article

Patterning the insect eye: From stochastic to deterministic mechanisms

In human and Drosophila eyes, photoreceptors sensitive to different wavelengths of light are distributed in stochastic patterns. One such patterning system has been analyzed in detail in the Drosophila retina. Ebadi et al. present a model that is capable of explaining both the stochastic Drosophila eye and the striped pattern of Dolichopodidae eyes and characterize the least number of underlying developmental rules necessary to produce both stochastic and deterministic patterns.

Image credit: Ebadi et al.

Patterning the insect eye: From stochastic to deterministic mechanisms

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Current Issue October 2018

11/15/2018

Research Article

Cytoplasmic flows in starfish oocytes are fully determined by cortical contractions

Klughammer et al. use starfish oocytes as a convenient model system to investigate the nature and function of cytoplasmic flows in early development. These cells are large and optically transparent - ideal for live cell imaging, which they combine with image processing and mathematical modelling. They show that experimentally observed cytoplasmic flows during early development are a direct consequence of surface contraction waves that deform the soft and contractile eggs.

Image credit: Klughammer et al.

Cytoplasmic flows in starfish oocytes are fully determined by cortical contractions

11/13/2018

Research Article

Moth olfactory receptor neurons adjust their encoding efficiency to temporal statistics of pheromone fluctuations

Sensory neural systems of living organisms encode the representation of their environment with remarkable efficiency. Levakova et al. study the dynamic coding of naturalistic olfactory stimulation by pheromone-specific antennal neurons. The analysis reveals that the representation is optimal from several complementary information-theoretic perspectives.

Image credit: Levakova et al.

Moth olfactory receptor neurons adjust their encoding efficiency to temporal statistics of pheromone fluctuations

11/13/2018

Research Article

Comparing Bayesian and non-Bayesian accounts of human confidence reports

It is widely hypothesized that confidence reflects the computed probability that a decision is accurate; however, this hypothesis has not been fully explored. Adler et al. use several human behavioral experiments to test a variety of models that may be considered to be distinct hypotheses about the computational underpinnings of confidence.

Comparing Bayesian and non-Bayesian accounts of human confidence reports

Image credit: Adler et al.

11/12/2018

Research Article

Visual physiology of the layer 4 cortical circuit in silico

How can we capture the incredible complexity of brain circuits in quantitative models, and what can such models teach us about mechanisms underlying brain activity? To answer these questions, Arkhipov et al. set out to build extensive, bio-realistic models of brain circuitry by employing systematic datasets on brain structure and function.

Visual physiology of the layer 4 cortical circuit in silico

Image credit: Arkhipov et al.

11/15/2018

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