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65 results for “visual cues”
Fig. 1 in Visual And Olfactory Cues For Catching Parasitic Wasps (Hymenoptera: Scoliidae)
Fig. 1. Seasonal distribution of catches of Scolia hirta, S. flavifrons and S. sexmaculata at Telki (HU), Bascica (HR) and Isparta (TR), respectively, as observed in the CE trap. Asterisks within one dia-
Data from: Texas field crickets (Gryllus texensis) use visual cues to place learn but perform poorly when intra- and extra-maze cues conflict
<p>Central place foraging field crickets are an ideal system for studying the adaptive value of learning and memory, but more research is needed on ecology-relevant cognition in these invertebrates. Here, we test the visuospatial place learning of Texas field crickets (<em>Gryllus texensis</em>) in a radial arm maze. Our study expands previous work on <em>G. texensis</em> cognition for accuracy measures and extends our previous findings on females to both sexes. Additionally, our study examines whether crickets use intra- or extra-maze cues to locate a food reward using a maze rotation putting the cues in conflict. We found that male and female crickets improved performance over trials when measured by accuracy variables but not latency variables; thigmotaxis negatively impacted performance in both sexes. In a reward-absent trial, both male and female crickets demonstrated place memory. When intra- and extra-maze cues conflicted during a rotation trial, crickets' performance was not better than chance. Our rotation results suggest that crickets may experience reciprocal overshadowing of conflicting cues – a result most often seen in other taxa with conflicting multi-modal cues. We conclude that crickets do not rely solely on: (1) a single-cue association; (2) route-following; or (3) their own scent cues to navigate the maze. Instead, male and female Texas field crickets seem to learn the location of the reward using a combination of proximal and distal cues. The possibility to test large numbers of wild-caught or laboratory-reared individuals opens the door to future investigations on the evolutionary ecology of visuospatial learning in these invertebrates.</p>
Carbon dioxide and blood-feeding shift visual cue tracking during navigation in Aedes aegypti mosquitoes
<p>Hematophagous mosquitoes need a blood meal to complete their reproductive cycle. To accomplish this, female mosquitoes seek vertebrate hosts, land on them, and bite. As their eggs mature, they shift attention away from hosts and towards finding sites to lay eggs. We asked whether females were more tuned to visual cues when a host-related signal, carbon dioxide, was present, and further examined the effect of a blood meal, which shifts behavior to ovipositing. Using a custom, tethered-flight arena that records wing stroke changes while displaying visual cues, we found the presence of CO2 enhances visual attention towards discrete stimuli and improves contrast sensitivity for host-seeking <em>Aedes aegypti</em> mosquitoes. Conversely, intake of a blood meal reverses vertical bar tracking, a stimulus that non-fed females readily follow. This switch in behavior suggests that physiological status modulates visual attention in mosquitoes, a phenomenon that has been described before in olfaction but not in visually-driven behaviors.</p>
Figure 3 in Absence of visual cues motivates desert ants to build their own landmarks
Figure 3. Ants build their own landmark by increasing their nest hill's height (A) Experimental design. Nest hills were first measured (height) and removed from 16 salt pan nests of which only eight were afterward provided with two artificial landmarks each. 3 days later, we re-measured rebuilt nest hills. (B) Photograph of the artificial landmarks added to a nest. (C) Percentage of the original nest rebuilt at nests with landmarks present or absent (unpaired t test, *p <0.05, bars indicate median ± SD).
Figure 2 in Absence of visual cues motivates desert ants to build their own landmarks
Figure 2. Absence of a nest hill impairs the navigation of salt pan ants (A–F) Trajectories of zero-vector ants of a salt pan nest (A–C) or shore nest (D–F) with nest hill present (left) or absent (right) after 5, 7.5, and 10 m displacement (colored circumferences indicate each displacement distance). Highlighted in bold is a trajectory exemplar of an ant for each displacement distance. (G–I) Straightness scores (i.e., run length divided by beeline) of homing ants of both nest types for the different displacement distances (Kruskal-Wallis test with Dunn's multiple comparisons test for selected pairs, **p <0.01; ***p <0.001, bars indicate median ± SD). (J–L) Success rates of homing ants of both nest types for the different displacement distances (Fisher's exact test, *p <0.05). Ants that during nest search left the tracking grid (radius, 20 m) around the nest entrance were classified as ''unsuccessful'' and are represented as crosses at the edges of the arenas.
Figure 1 in Absence of visual cues motivates desert ants to build their own landmarks
Figure 1. Accuracy of long homing runs and survey of nests in a salt pan (A) GPS tracks of long foraging runs (Geo Tracker, Google Earth) (see also Figure S1). Each black dot represents a different nest. Black lines, successful homing runs; red lines, unsuccessful homing runs that resulted in the ant's death. The track that leads to colony E is displaced to fit closer to the other paths for visualization purposes. (B) Photographs of a typical salt pan nest (left) and a typical shore nest (right, photo credit: Cornelia Buehlmann). (C) Map of the salt pan with dominant environmental features (i.e., vegetation and terrain elevations) and classifications of two nest types. Nests located at least 60 m away from any shoreline are classified as salt pan nests (blue) and nests less than 40 m away from any shoreline are classified as shore nests (green). Nests situated between 40 and 60 m from any shoreline are not included in the analysis. (D) Height of nest hills at salt pan nests and shore nests (unpaired t test, n = 33; ****p <0.0001; bars indicate median and SD). See also Table S1.
Data for "Reversal learning of visual cues in Heliconiini butterflies"
<p>Here I provide the data and R code used in the analyses included in the paper "Reversal learning of visual cues in Heliconiini butterflies".</p>
Weighting of sensory cues reflects changing patterns of visual investment during ecological divergence in Heliconius butterflies
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Data from: Texas field crickets (Gryllus texensis) use visual cues to place learn but perform poorly when intra- and extra-maze cues conflict
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Carbon dioxide and blood-feeding shift visual cue tracking during navigation in Aedes aegypti mosquitoes
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Accelerated landings in stingless bees are triggered by visual threshold cues
<p>Most flying animals rely primarily on visual cues to coordinate and control their trajectory when landing. Studies of visually-guided landing typically involve animals that decrease their speed before touchdown. Here, we investigate the control strategy of the stingless bee <i>Scaptotrigona depilis</i>, which instead accelerates when landing on its narrow hive entrance. By presenting artificial targets that resemble the entrance at different locations on the hive, we show that these accelerated landings are triggered by visual cues. We also found that <i>S. depilis</i> initiated landing and extended their legs when the angular size of the target reached a given threshold. Regardless of target size, the magnitude of acceleration was the same and the bees aimed for the same relative position on the target suggesting that <i>S. depilis</i> use a computationally simple but elegant 'stereotyped' landing strategy that requires few visual cues.</p>
Data for "Impact of early visual experience on later usage of color cues"
<div> <div>This repository contains the code and data underlying the paper "Impact of early visual experience on later usage of color cues" (Vogelsang et al., Science, 2024).</div> </div>
Neural and visual processing of social gaze cueing in typical and ASD adults
<p>Atypical eye gaze in joint attention is a clinical characteristic of autism spectrum disorder (ASD). Despite this documented symptom, neural processing of joint attention tasks in real-life social interactions is not understood. To address this knowledge gap, functional-near infrared spectroscopy (fNIRS) and eye-tracking data were acquired simultaneously as ASD and typically developed (TD) individuals engaged in a gaze-directed joint attention task with a live human and robot partner. We test the hypothesis that face processing deficits in ASD are greater for interactive faces than for simulated (robot) faces. Consistent with prior findings, neural responses during human gaze cueing modulated by face visual dwell time resulted in increased activity of ventral frontal regions in ASD and dorsal parietal systems in TD participants. Hypoactivity of the right dorsal parietal area during live human gaze cueing was correlated with autism spectrum symptom severity: Brief Observations of Symptoms of Autism (BOSA) scores (r = -0.86). Contrarily, neural activity in response to robot gaze cueing modulated by visual acquisition factors activated dorsal parietal systems in ASD, and this neural activity was not related to autism symptom severity (r = 0.06). These results are consistent with the hypothesis that altered encoding of incoming facial information to the dorsal parietal cortex is specific to live human faces in ASD. These findings open new directions for understanding joint attention difficulties in ASD by providing a connection between superior parietal lobule activity and live interaction with human faces.</p>
Flexible use of visual and acoustic cues during roost finding in Spix's disc-winged bat Thyroptera tricolor
<p>The ability of an animal to detect environmental cues is crucial for its survival and fitness. In bats, sound certainly plays a significant role in the search for food, spatial navigation, and social communication. Yet, the efficiency of a bat's echolocation could be limited by atmospheric attenuation and background clutter. In this context, sound can be complemented by other sensory modalities, like smell or vision. Spix's disc-winged bat (<em>Thyroptera tricolor</em>) uses acoustic cues from other group members to locate the roost (tubular unfurled leaves of plants in the order Zingiberales). Our research focused on how individuals find a roost that has not been yet occupied, considering the urge to find a suitable leaf approximately every day, during nighttime or in daylight. We observed the process of roost finding in <em>T. tricolor</em> in a flight cage, manipulating the audio/visual sensory input available for each trial. A broadband noise was broadcast in order to mask echolocation, while experiments conducted at night significantly reduced the amount of light. We measured the time needed to locate the roost under these different conditions. Results show that with limited visual and acoustic cues, search time increases significantly. In contrast, bats seemed capable of using acoustic and visual cues in a similarly efficient manner, since roost search showed no strong differences in duration when bats could use only sound, only vision, or both senses at the same time. Our results show that non-acoustic inputs can still be an important source of information for finding critical resources in bats.</p>
Visual Function During Gait in Parkinson's Disease: Impact of Cognition and Response to Visual Cues
ClinicalTrials.gov study NCT02610634. IPD Sharing: Not stated. Countries: 1. Publications: 7.
Sensory Integration of Auditory and Visual Cues in Diverse Contexts
ClinicalTrials.gov study NCT04479761. IPD Sharing: NO. Countries: 1. Publications: 1.
An experimental test of information use by North American wood ducks (Aix sponsa): external habitat cues, not social visual cues, influence initial nest-site selection
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Processed data for: Co-registration of heading to visual cues in retrosplenial cortex
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Accelerated landings in stingless bees are triggered by visual threshold cues
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Neural and visual processing of social gaze cueing in typical and ASD adults
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.