Flight torque and lift responses of the housefly (Musca domestica) to a single stripe moving in different parts of the visual field

1978 ◽  
Vol 29 (4) ◽  
pp. 237-247 ◽  
Author(s):  
C. Wehrhahn
Keyword(s):  
Visual Field ◽  
Musca Domestica ◽  
Different Parts

Landing Reaction of Musca domestica, IV: A. Monocular and Binocular Vision; B. Relationships between Landing and Optomotor Reactions

1973 ◽  
Vol 28 (9-10) ◽  
pp. 579-592 ◽  
Author(s):  
Cloe Taddei-Ferretti ◽  
Antonio Fernandez Perez de Talens
Keyword(s):  
Visual Field ◽  
Musca Domestica ◽  
Binocular Vision ◽  
Lateral Displacement ◽  
Double Vision ◽  
Single Vision ◽  
Monocular Stimulation

Abstract 1. The behaviours of monocular and binocular flies are compared with respect to the landing reaction. It is found that landing reaction is elicited through different mechanisms by stimulating the zones of single or of double vision: Monocular stimulation in the field of single vision evokes reactions with both ipsilateral and contralateral leg s; monocular stimulation in the field of double vision evokes reaction only with the ipsilateral legs. 2. T he relationships between landing and optomotor reactions are analyzed. It is found that, a. W hen the fly is not free to turn itself, it may react to a lateral displacement in the visual field (optomotor stimulus) with a landing reaction ; b. The threshold for landing evoked by an expansion in the visual field (landing stimulus) is much low er than the threshold for landing evoked by a lateral displacement; c. A horizontal lateral displacement in the visual field of an eye is adequate to evoke the landing reaction only if it is perceived in the direction from the front to the back of the eye; d. W hen the fly is free to turn itself, it can present both landing and opto­motor reactions to a optomotor stimulus; e. W hen the fly is fixed at a point, landing reaction can be evoked also by an escape stimulus.

scholarly journals The visual perception of movement by toads

1944 ◽  
Vol 132 (868) ◽  
pp. 291-307 ◽  
Keyword(s):  
Visual Field ◽  
Visual Perception ◽  
Ample Evidence ◽  
Stationary Objects ◽  
Different Parts

The feeding reaction of toads has been shown by experiment to be dependent on the visual perception of movement. The influence of the visual field on the snapping reaction has been investigated with an apparatus which allowed the object, subject and parts of the visual field to be moved independently of each other. Ample evidence for kinematoscopic sensation of movement was found at speeds varying from 27 to 5 pictures per sec. Evidence is brought forward to prove that toads are able to recognize stationary objects and even to discriminate different parts of them.

Observations on the Oviposition of the House-fly, Musca domestica, L., in Panama.

1922 ◽  
Vol 13 (3) ◽  
pp. 301-305 ◽  
Author(s):  
L. H Dunn
Keyword(s):  
Life History ◽  
Musca Domestica ◽  
House Fly ◽  
The Past ◽  
Life Period ◽  
The World ◽  
Amount Of Knowledge ◽  
Different Parts

During the past twenty-five years and more the house-fly, Musca domestica, L., has received much attention from entomologists, medical men, sanitarians and other investigators, and many observations on the life-history, habits, etc., of this fly have been made by individuals in different parts of the world. As a result of the investigations carried out during this period much information has been accumulated regarding the biology of this dangerous nuisance to mankind. However, notwith-standing all these observations and the great amount of knowledge that has been gained, there are a few points that have remained more or less indefinite. One of these is concerning the oviposition of the female fly; the number of eggs deposited during her life-period and the time elapsing between depositions.

scholarly journals Landing Reaction of Musca Domestica: Dependence on Dimensions and Position of the Stimulus

1970 ◽  
Vol 52 (2) ◽  
pp. 233-256 ◽  
Author(s):  
A. FERNANDEZ PEREZ DE TALENS ◽  
C. TADDEI FERRETI
Keyword(s):  
Visual Field ◽  
Musca Domestica ◽  
Wave Length ◽  
House Fly ◽  
Temporal Parameter ◽  
Spatial Integration ◽  
Saturation Point ◽  
Optical Pattern ◽  
Moiré Effect

1. The house--fly exhibits the landing reaction when an expanding optical pattern is placed before it. An expanding pattern which is easy to measure and which keeps the level of illumination constant is created by rotating spirals. 2. In analysing the dependence of landing reaction on the spiral pitch and multiplicity and on the frequency of local stimuli on each ommatidium, (a) interference by the tangential characteristics of the spiral has been observed; (b) stimulus efficiency has been found to depend on stimulus wave-length; (c) the relevance of the above factors and of a temporal parameter influencing both optomotor and landing reactions has been evaluated. 3. The fact that no Moire effect has been observed is explained in terms of characteristics of stimuli used. 4. The dependence of pattern efficiency on the position of the stimulus in the visual field has been ascertained. 5. Spatial integration of local landing stimuli has been shown in various cases and its threshold excitability and saturation point have been obtained. The dependence of these two last parameters on the position of the stimulus in the visual field has been ascertained.

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