Zeitschrift für vergleichende Physiologie
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Visual acuity, contrast sensitivity and retinal magnification in a marsupial, the tammar wallaby (Macropus eugenii )
Zeitschrift für vergleichende Physiologie - Tập 183 - Trang 379-387 - 1998
The visual acuity of the tammar wallaby was estimated using a behavioural discrimination task. The wallabies were trained to discriminate a high-contrast (86%) square-wave grating from a grey field of equal luminance (1000–6000 cd m−2). Visual-evoked cortical potentials were used to measure the complete contrast sensitivity function. The stimulus was a sinusoidal phase reversal of a sinusoidally ......
Physiological effects of visual contact to a conspecific inBlennius pholis (Pisces, Teleostei)
Zeitschrift für vergleichende Physiologie - Tập 101 - Trang 237-242 - 1975
Adult maleBlennius pholis were kept (a) isolated or (b) with visual contact to a male conspecific. For six weeks the fish were fed with a ration corresponding to 5% of their body weight daily. The weight of the fish was recorded weekly. Fish with visual contact to a conspecific had a lower rate of growth, a lower food conversion efficiency, a lower liver weight, a higher water content of the muscl......
Three-dimensional orientation in desert ants: context-independent memorisation and recall of sloped path segments
Zeitschrift für vergleichende Physiologie - Tập 194 - Trang 517-522 - 2008
Desert ants (Cataglyphis fortis) navigate by a combination of path integration and landmark-based route memories. Their ability to correct sloped path segments to their ground distances enables them to orientate accurately even in undulating terrain. In this study, we tested whether or not ants incorporate vertical components of an itinerary into their route memory in similar ways as they do with ......
Electrophysiological measurements of spectral mechanisms in the retinas of two cervids: white-tailed deer (Odocoileus virginianus) and fallow deer (Dama dama)
Zeitschrift für vergleichende Physiologie - Tập 174 - Trang 551-557 - 1994
Electroretinogram (ERG) flicker photometry was used to study the spectral mechanisms in the retinas of white-tailed deer (Odocoileus virginianus) and fallow deer (Dama dama). In addition to having a rod pigment with maximum sensitivity (λmax) of about 497 nm, both species appear to have two classes of photopic receptors. They share in common a short-wavelength-sensitive cone mechanism having λmax ......
Processing of unilateral and bilateral auditory inputs by the ON1 and L1 interneurons of the cricket Acheta domesticus and comparison to other cricket species
Zeitschrift für vergleichende Physiologie - - 1995
Olfactory sensitivity for sperm-attractant aromatic aldehydes: a comparative study in human subjects and spider monkeys
Zeitschrift für vergleichende Physiologie - Tập 197 - Trang 15-23 - 2010
Using a three-alternative forced-choice ascending staircase procedure, we determined olfactory detection thresholds in 20 human subjects for seven aromatic aldehydes and compared them to those of four spider monkeys tested in parallel using an operant conditioning paradigm. With all seven odorants, both species detected concentrations <1 ppm, and with several odorants single individuals of both sp......
Olfactory receptors on the maxillary palps of small ermine moth larvae: evolutionary history of benzaldehyde sensitivity
Zeitschrift für vergleichende Physiologie - Tập 193 - Trang 635-647 - 2007
In lepidopterous larvae the maxillary palps contain a large portion of the sensory equipment of the insect. Yet, knowledge about the sensitivity of these cells is limited. In this paper a morphological, behavioral, and electrophysiological investigation of the maxillary palps of Yponomeuta cagnagellus (Lepidoptera: Yponomeutidae) is presented. In addition to thermoreceptors, CO2 receptors, and gus......
Olfactory learning and memory in the greater short-nosed fruit bat Cynopterus sphinx: the influence of conspecifics distress calls
Zeitschrift für vergleichende Physiologie - Tập 207 - Trang 667-679 - 2021
This study was designed to test whether Cynopterus sphinx distress calls influence olfactory learning and memory in conspecifics. Bats were exposed to distress calls/playbacks (PBs) of distress calls/modified calls and were then trained to novel odors. Bats exposed to distress calls/PBs made significantly fewer feeding attempts and bouts of PBs exposed to modified calls, which significantly induce......
Auditory properties of the superior colliculus in the horseshoe bat, Rhinolophus rouxi
Zeitschrift für vergleichende Physiologie - Tập 169 - Trang 719-728 - 1991
Auditory response properties were studied in the superior colliculus (SC) of the echolocating horseshoe bat Rhinolophus rouxi, a long CF-FM bat, by the use of stationary, dichotic stimuli. The most striking finding in the horseshoe bat was an enormous overrepresentation of neurons with best frequencies in the range of the constant frequency component of the species specific echolocation call (72% ......
Selective attention in a synchronising bushcricket: physiology, behaviour and ecology
Zeitschrift für vergleichende Physiologie - - 2007
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