Results 61 to 70 of about 86,947 (253)

The role of optic flow on reactive brain processing in cognitive tasks during locomotion

Brain Research Bulletin
Perception and action share neural resources that must be flexibly allocated across simultaneous tasks. In this context, the optic flow provides key visual input during locomotion and may interact with concurrent cognitive processing. This study aimed to:
BiancaMaria Di Bello, Natalie Ferrulli, Camilla Panacci, Margherita Filosa, Sabrina Pitzalis, Francesco Di Russo   +5 more
doaj   +1 more source

A Bio-inspired Collision Avoidance Model Based on Spatial Information Derived from Motion Detectors Leads to Common Routes. [PDF]

PLoS Computational Biology, 2015
Avoiding collisions is one of the most basic needs of any mobile agent, both biological and technical, when searching around or aiming toward a goal.
Olivier J N Bertrand, Jens P Lindemann, Martin Egelhaaf   +2 more
doaj   +1 more source

Identification of a Shiga toxin A‐derived peptide internalized into Gb3 receptor‐bearing cells via interaction with the Shiga toxin B subunit

FEBS Letters, EarlyView.
The process of internalization of the Shiga toxin A subunit via formation of a complex with the Shiga toxin B subunit, which specifically binds to the Gb3 receptor. The peptide is designed to act as a carrier of drugs into cancer cells. Here, we explored the potential of peptides derived from the catalytic A subunit of Shiga toxin (STxA) to be drug ...
Giulia Opassi, João C. Encarnação, Valeria Napolitano, Grzegorz Dubin, Grzegorz Popowicz, Karl Andersson, U. Helena Danielson   +6 more
wiley   +1 more source

Integration of parallel pathways for flight control in a hawkmoth reflects prevalence and relevance of natural visual cues

eLife
An animal’s behaviour is the result of multiple neural pathways acting in parallel, receiving information across and within sensory modalities at the same time. How these pathways are integrated, particularly when their individual outputs are in conflict,
Ronja Bigge, Rebecca Grittner, Anna Lisa Stöckl   +2 more
doaj   +1 more source

Using Optic Flow for the Estimation of Travel Distance

i-Perception, 2011
Much research on optic flow has been concerned with the estimation of heading and the control of the direction of self-motion. In my presentation I will instead focus on a different use of optic flow, namely the estimation of the distance that one has ...
Markus Lappe
doaj   +1 more source

The Shape of a Vehicle Windshield Affects Reaction Time and Brain Activity During a Target Detection Task

Frontiers in Human Neuroscience, 2020
Background: Achieving clear visibility through a windshield is one of the crucial factors in manufacturing a safe and comfortable vehicle. The optic flow (OF) through the windshield has been reported to divert attention and could impair visibility ...
Takafumi Sasaoka, Maro G. Machizawa, Yoshihisa Okamoto, Koji Iwase, Toshihiro Yoshida, Nanae Michida, Atsuhide Kishi, Masaki Chiba, Kazuo Nishikawa, Shigeto Yamawaki, Takahide Nouzawa   +10 more
doaj   +1 more source

On discontinuous optical flow

Comput. Artif. Intell., 2000
This paper deals with an analysis of image motion in frequency space with respect to motion discontinuities and surface translucence. The frequency structure of motion discontinuities due to occlusion is derived under models of constant and linear optical flow. Authors demonstrate its various geometrical properties.
Beauchemin, S. S., Barron, J. L.
openaire   +2 more sources

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

FEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang, Hyo Been Jin, Chang Min Kim, So Yeon Lee, Hyun Ho Park   +4 more
wiley   +1 more source

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

Molecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce, Simone Bini, Marialuisa Sponziello, Giorgio Grani, Giulia Fiscon, Paola Paci, Lorenzo Farina, Rosa Falcone, Valentina Maggisano, Sebastiano Filetti, Cosimo Durante, Antonella Verrienti   +11 more
wiley   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source