scholarly journals Visual orientation behavior of gypsy moth larvae to emissive colors

2011 ◽  
Vol 25 (S1) ◽  
Author(s):  
Katelyn F Beattie ◽  
Jillian L Sanford ◽  
Willie Carter ◽  
Vonnie DC Shields ◽  
Fernando Otolora‐Luna ◽  
...  
Keyword(s):  
Gypsy Moth ◽  
Visual Orientation ◽  
Orientation Behavior

Cortex Controls Multisensory Depression in Superior Colliculus

2003 ◽  
Vol 90 (4) ◽  
pp. 2123-2135 ◽  
Author(s):  
Wan Jiang ◽  
Barry E. Stein
Keyword(s):  
Receptive Field ◽  
Superior Colliculus ◽  
Multisensory Integration ◽  
Auditory Stimulus ◽  
Visual Stimulus ◽  
Sensory Stimulus ◽  
Visual Orientation ◽  
Orientation Behavior ◽  
Cortical Areas

Multisensory depression is a fundamental index of multisensory integration in superior colliculus (SC) neurons. It is initiated when one sensory stimulus (auditory) located outside its modality-specific receptive field degrades or eliminates the neuron's responses to another sensory stimulus (visual) presented within its modality-specific receptive field. The present experiments demonstrate that the capacity of SC neurons to engage in multisensory depression is strongly dependent on influences from two cortical areas (the anterior ectosylvian and rostral lateral suprasylvian sulci). When these cortices are deactivated, the ability of SC neurons to synthesize visual-auditory inputs in this way is compromised; multisensory responses are disinhibited, becoming more vigorous and in some cases indistinguishable from responses to the visual stimulus alone. Although obtaining a more robust multisensory SC response when cortex is nonfunctional than when it is functional may seem paradoxical, these data may help explain previous observations that the loss of these cortical influences permits visual orientation behavior in the presence of a normally disruptive auditory stimulus.

On robots and flies: Modeling the visual orientation behavior of flies

1999 ◽  
Vol 29 (4) ◽  
pp. 227-242 ◽  
Author(s):  
Susanne A. Huber ◽  
Matthias O. Franz ◽  
Heinrich H. Bülthoff
Keyword(s):  
Visual Orientation ◽  
Orientation Behavior

scholarly journals Flexibility in a Single Behavioral Variable of Drosophila

2001 ◽  
Vol 8 (1) ◽  
pp. 1-10
Author(s):  
Martin Heisenberg ◽  
Reinhard Wolf ◽  
Björn Brembs
Keyword(s):  
Pattern Recognition ◽  
Flight Control ◽  
Visual Memory ◽  
High Speed ◽  
Visual Orientation ◽  
Orientation Behavior ◽  
Proboscis Extension Reflex ◽  
Behavioral Variable ◽  
In The Wild ◽  
Proboscis Extension

The flexibility of behavior is so rich, and its components are so exquisitely interwoven, that one may be well advised to turn to an isolated behavioral module for study. Gill withdrawal inAplysia, the proboscis extension reflex in the honeybee, and lid closure in mammals are such examples. We have chosen yawing, a single component of flight orientation in Drosophila melanogaster, for this approach. A specialty of this preparation is that the behavioral output can be reduced beyond the single module by one further step. It can be studied in tethered animals in which all turns are blocked while the differentially beating wings still provide the momentum. These intended yaw turns are measured by a torque meter to which the fly is hooked. The fly is held horizontally as if cruising at high speed. The head is glued to the thorax. It can bend its abdomen, extend its proboscis, and move its legs but cannot shift its direction of gaze or its orientation in space. Evidently, a fly hardly ever encounters this bizarre situation in the wild. We describe here the flexibility in this single behavioral variable. It provides insights into the relation between classical and operant conditioning, the processing of and interactions between the conditioned visual stimuli, early visual memory, visual pattern recognition, selective attention, and several other experience-dependent properties of visual orientation behavior. We start with a brief summary of visual flight control at the torque meter.

Visuelles Orientierungsverhalten auf Webseiten (Visual Orientation Behavior on Web Pages)

i-com ◽  
2005 ◽  
Vol 4 (1/2005) ◽  
pp. 20-25
Author(s):  
Frank Ollermann ◽  
Stefan Reinecke ◽  
Kai-Christoph Hamborg
Keyword(s):  
Visual Orientation ◽  
Web Pages ◽  
Orientation Behavior

ZusammenfassungIn einer Blickbewegungsstudie mit N = 70 Internetnutzern wurden Wahrnehmungsprozesse in der Orientierungsphase bei der Betrachtung von Internetseiten untersucht. Die Ergebnisse zeigen, dass je nach Art der betrachteten Website unterschiedliche Seitenelemente zur ersten Orientierung dienen. Die Befunde machen unter anderem deutlich, dass sich Ergebnisse von Blickbewegungsstudien, die sich nur auf eine Art von Website stützen, nicht auf Websites im Allgemeinen übertragen lassen.

ANALYSIS OF REGULATIONS REGARDING THE SETTLEMENT OF ISSUES ON THE REMOVAL AND RECOVERY OF PLANTATIONS IN THE RIGHT-OF-WAY OF PUBLIC ROADS

2020 ◽  
pp. 55-60
Author(s):  
Nataliia Kharytonova ◽  
Olha Mykolaienko ◽  
Tetyana Lozova
Keyword(s):  
Traffic Safety ◽  
Climatic Factors ◽  
Visual Orientation ◽  
Right Of Way ◽  
Adverse Weather ◽  
Overhead Power Lines ◽  
The Right ◽  
Neck Diameter ◽  
Proper Operation

Greening of roads contributes to the protection of roads and their elements from influence of adverse weather and climatic factors; it includes the measures for improvement and landscaping of roads, ensures the protection of roadside areas from transport pollution, provides visual orientation of drivers. The solution of these issues will ensure creation and maintenance of safe and comfortable conditions for travelers. Green plantings in the right-of-way road area include woody, bushy, flower and grass vegetation of natural and artificial origin. For proper operation of public roads and satisfaction of other needs of the industry, there may be the need in removing the greenery. The reason for the removal of greenery in the right-of-way road area may be due to the following factors: construction of the architectural object, widening of the motor road, repair works in the security zone of overhead power lines, water supply, drainage, heating, telecommunications facilities, cutting of hazardous, dry and fautal trees, as well as self-grown and brushwood trees with a root neck diameter not exceeding 5 cm, elimination of the consequences of natural disasters and emergencies. The removal of plantations in the right-of-way area is executed in order to ensure traffic safety conditions and to improve the quality of plantations composition and their protective properties. Nowadays, in Ukraine there is no clear procedure for issuing permits for removing of such plantations. In order to resolve this issue, there is a need in determining the list of regulations in the area of forest resources of Ukraine and, if needed, the list of regulatory acts that have to be improved; to prepare a draft of the regulatory legal act that would establish the procedure of plantations cutting, the methodology of their condition determination, recovery costs determination, the features of cutting. Keywords: plantations, cutting, right-of-way, woodcutting permit, order.

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