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135 results for “IMITATOR”
FIG. 3 in Intraspecific Call Variation in the Mimic Poison Frog Ranitomeya imitator
FIG. 3.—Regressions between (a) elevation and average male mass, (b) average male mass and note length residuals, (c) average male mass and pulse rate residuals, and (d) average male mass and dominant frequency residuals of Ranitomeŋa imitator. Individual dots represent population averages.
FIG. 2 in Intraspecific Call Variation in the Mimic Poison Frog Ranitomeya imitator
FIG. 2.—Clines in advertisement call parameters across three mimetic transition zones of Ranitomeŋa imitator. (a) Banded-striped transition zone, (b) spotted-striped transition zone, (c) striped-varadero transition zone. In all panels, call parameter values for individual R. imitator (represented by dots) are plotted along the sampling transect (x-axis). For all panels, the fit line represents the best-supported model according to the AICc (see Table 2).
FIG. 1 in Intraspecific Call Variation in the Mimic Poison Frog Ranitomeya imitator
FIG. 1.—Advertisement calls of Ranitomeŋa imitator, showing waveforms (above) and spectrograms (below). (a) varadero morph, recording locality Varadero Forest 1, recorded at 27°C (note length = 0.983 s, pulse rate = 37.6 pulses/s, dominant frequency = 5059 Hz); (b) striped morph, recording locality Varadero South Bank, recorded at 26°C (note length = 0.692 s, pulse rate = 34.7 pulses/s, dominant frequency = 5668 Hz); (c) banded morph, recording locality Sauce, recorded at 26°C (note length = 1.044 s, pulse rate = 28.7 pulses/s, dominant frequency = 5003 Hz); (d) spotted morph, recording locality San Jose, recorded at 22°C (note length = 0.777 s, pulse rate = 33.5 pulses/s, dominant frequency = 5194 Hz). The nearly ubiquitous noise occurring at 7 kHz in all recordings is background noise caused by calling insects.
F I G U R E 1 in The nutritional importance of invertebrates to female Cebus capucinus imitator in a highly seasonal tropical dry forest
F I G U R E 1 The (a) monthly fruit energy density versus the monthly percentage of energy intake from invertebrates for all female capuchins studied and (b) group-level linear regression results between ripe fruit energy density and the percentage of energy intake from invertebrates (log transformed) for our three capuchin study groups. One outlier month (> 2 SD from the mean) was removed from the intergroup analysis
F I G U R E 3 in The nutritional importance of invertebrates to female Cebus capucinus imitator in a highly seasonal tropical dry forest
F I G U R E 3 Mean contribution of fruit and invertebrates to the (a) estimated daily energy intake and (b) protein intake per body weight per day. The dotted red line indicates monthly estimated (a) energy intake based on the estimated 1,000 kJ/day and (b) protein requirements based on the 1.8 g/kg/day. The dotted black line represents the estimated requirements for lactating females, which are estimated to require 1.5 times more (a) energy and (b) protein than cycling females. Minimum energetic and protein requirements are often not met by consuming fruit alone but are when invertebrates are included, particularly for lactating females. Although data are presented to reflect a calendar year, data were collected in three separate periods between 2009 and 2011
T A B L E 2 in The nutritional importance of invertebrates to female Cebus capucinus imitator in a highly seasonal tropical dry forest
T A B L E 2 Taxonomic composition of invertebrate prey consumed by female white-faced capuchins from 2009 to 2011, at Sector Santa Rosa, Costa Rica
Imitation of novel intransitive body actions in a Beluga whale (Delphinapterus leucas): A "do as other does" study
<p>Video S1 Training Session; Video S2 Dance DA; Video S3 Squirt SQ; Video S4 Ventral Leap VL; Video S5 Fluke Present FP; Video S6 Tail Splash TS; Video S7 Fluke Present FP 0,5 and FP correct; Video S8 Lateral Splash LS; Video S9 Pec Mimic PM; Video S10 Back Leap BL.</p>
Comparing Imitation and Stereotyped Behaviors in Autistic Children: Robots vs. Human Operators
ClinicalTrials.gov study NCT06144528. IPD Sharing: NO. Countries: 1. Publications: 2.
Data from: Inbreeding avoidance and female mate choice shape reproductive skew in capuchin monkeys (Cebus capucinus imitator)
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Data from: Mimetic divergence and the speciation continuum in the mimic poison frog Ranitomeya imitator
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Data from: Reproductive isolation related to mimetic divergence in the poison frog Ranitomeya imitator
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Data from: Re-analysis of data reveals no evidence for neonatal imitation in rhesus macaques
Over the past decade, a growing number of publications have claimed to provide evidence for the existence and function of neonatal imitation in rhesus macaques. Here I show that there is in fact no empirical basis for these claims. Studies of the phenomenon have consistently failed to implement the gold standard cross-target analytical approach, which controls for increases in matching responses that may not be a function of the specific modelled behaviour. Critically, a preregistered re-analysis of the entire set of existing data using this cross-target approach shows that macaque neonates have failed to produce matching tongue protrusion or lipsmacking responses at levels greater than chance. Furthermore, there is no evidence for intra-individual consistency in "imitative" responses across different actions, as imitation scores for the two actions are negatively correlated with each other. Macaque tongue protrusion and lipsmacking responses may vary as a function of general factors that fluctuate over testing sessions, rather than as a function of the specific model or of between-individual variations in imitative tendencies.
Data from: Variant at serotonin transporter gene predicts increased imitation in toddlers: relevance to the human capacity for cumulative culture
Cumulative culture ostensibly arises from a set of sociocognitive processes which includes high-fidelity production imitation, prosociality and group identification. The latter processes are facilitated by unconscious imitation or social mimicry. The proximate mechanisms of individual variation in imitation may thus shed light on the evolutionary history of the human capacity for cumulative culture. In humans, a genetic component to variation in the propensity for imitation is likely. A functional length polymorphism in the serotonin transporter gene, the short allele at 5HTTLPR, is associated with heightened responsiveness to the social environment as well as anatomical and activational differences in the brain's imitation circuity. Here, we evaluate whether this polymorphism contributes to variation in production imitation and social mimicry. Toddlers with the short allele at 5HTTLPR exhibit increased social mimicry and increased fidelity of demonstrated novel object manipulations. Thus, the short allele is associated with two forms of imitation that may underlie the human capacity for cumulative culture. The short allele spread relatively recently, possibly due to selection, and its frequency varies dramatically on a global scale. Diverse observations can be unified via conceptualization of 5HTTLPR as influencing the propensity to experience others' emotions, actions and sensations, potentially through the mirror mechanism.
Data from: Poor neuro-motor tuning of the human larynx: comparison of sung and whistled pitch imitation
Vocal imitation is a hallmark of human communication that underlies the capacity to learn to speak and sing. Even so, poor vocal imitation abilities are surprisingly common in the general population, and even expert vocalists cannot match the precision of a musical instrument. Although humans have evolved a greater degree of control over the laryngeal muscles that govern vocal pitch production, this ability may still be underdeveloped compared to control over the articulatory muscles, such as the tongue and lips, volitional control of which emerged earlier in primate evolution. Human participants imitated simple melodies by either singing (i.e., producing pitch with the larynx) or whistling (i.e., producing pitch with the lips and tongue). While participants who sung more precisely also whistled more precisely, sung imitations were less precise than whistled imitations. Furthermore, sung notes were systematically biased towards each individual's habitual pitch, which may act to conserve muscular effort. The laryngeal muscles that control voice production are under less precise control than the oral muscles that are involved in whistling. This imprecision may be due to the relatively recent evolution of volitional laryngeal-motor control in humans, which may be tuned just well enough for the coarse modulation of vocal-pitch in speech.
Data from: Trial-and-error copying of demonstrated actions reveals how fledglings learn to 'imitate' their mothers
Understanding how humans and other animals learn to perform an act from seeing it done has been a major challenge in the study of social learning. To determine whether this ability is based on 'true imitation', many studies have applied the two-action experimental paradigm, examining whether subjects learn to perform the specific action demonstrated to them. Here, we show that the insights gained from animals' success in two-action experiments may be limited, and that a better understanding is achieved by monitoring subjects' entire behavioural repertoire. Hand-reared house sparrows that followed a model of a mother demonstrator were successful in learning to find seeds hidden under a leaf, using the action demonstrated by the mother (either pushing the leaf or pecking it). However, they also produced behaviours that had not been demonstrated but were nevertheless related to the demonstrated act. This finding suggests that while the learners were clearly influenced by the demonstrator, they did not accurately imitate her. Rather, they used their own behavioural repertoire, gradually fitting it to the demonstrated task solution through trial and error. This process is consistent with recent views on how animals learn to imitate, and may contribute to a unified process-level analysis of social learning mechanisms.
FIGURES 10–11 in Association and description of the male of Aplochares imitator (Smith) (Hymenoptera: Pompilidae)
FIGURES 10–11. Aplochares adrastes; Fig. 10. Habitus, female; and Fig. 11. Habitus, male.
FIGURES 6–7 in Association and description of the male of Aplochares imitator (Smith) (Hymenoptera: Pompilidae)
FIGURES 6–7. Aplochares imitator; Fig. 6. Wings, female; and Fig. 7. Wings, male.
Supplementary material 1 from: Rasoamanana N, Csosz S, Fisher BL (2017) Taxonomic revision of imitating carpenter ants, Camponotus subgenus Myrmopytia (Hymenoptera, Formicidae) of Madagascar, using morphometry and qualitative traits. ZooKeys 681: 119-152. https://doi.org/10.3897/zookeys.681.13187
Ratios of morphometric data for all specimens :
Figure 6 from: Rasoamanana N, Csosz S, Fisher BL (2017) Taxonomic revision of imitating carpenter ants, Camponotus subgenus Myrmopytia (Hymenoptera, Formicidae) of Madagascar, using morphometry and qualitative traits. ZooKeys 681: 119-152. https://doi.org/10.3897/zookeys.681.13187
Figure 6 - Petiole in lateral view of A Camponotus longicollis (CASENT0191989), and B Camponotus karaha (CASENT0067555).
Figure 10 from: Rasoamanana N, Csosz S, Fisher BL (2017) Taxonomic revision of imitating carpenter ants, Camponotus subgenus Myrmopytia (Hymenoptera, Formicidae) of Madagascar, using morphometry and qualitative traits. ZooKeys 681: 119-152. https://doi.org/10.3897/zookeys.681.13187
Figure 10 - Camponotus imitator major worker CASENT0452863. A Lateral view B Head in full-face view C Dorsal view.
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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)
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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.