Development of Snake‐Directed Antipredator Behavior by Wild White‐faced Capuchin Monkeys: I. Snake‐Species Discrimination

Meno, Whitney; Coss, Richard G.; Perry, Seymour

doi:10.1002/ajp.22106

Cited by 44 publications

(45 citation statements)

References 29 publications

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“…Thus, snake scales alone (i.e., without curvilinear cues) were sufficient for detection. Further support for the role of scales in driving snake detection comes from research that has demonstrated that white-faced capuchin monkeys ( Cebus capucinus ) respond more strongly to snake models with scales than to white snake models without scales20. Here we examined whether humans are also highly responsive to partially exposed snakes and specifically to snake skin scales by employing EEG.…”

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confidence: 99%

Snake scales, partial exposure, and the Snake Detection Theory: A human event-related potentials study

Strien

Isbell

2017

Sci Rep

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Studies of event-related potentials in humans have established larger early posterior negativity (EPN) in response to pictures depicting snakes than to pictures depicting other creatures. Ethological research has recently shown that macaques and wild vervet monkeys respond strongly to partially exposed snake models and scale patterns on the snake skin. Here, we examined whether snake skin patterns and partially exposed snakes elicit a larger EPN in humans. In Task 1, we employed pictures with close-ups of snake skins, lizard skins, and bird plumage. In task 2, we employed pictures of partially exposed snakes, lizards, and birds. Participants watched a random rapid serial visual presentation of these pictures. The EPN was scored as the mean activity (225–300 ms after picture onset) at occipital and parieto-occipital electrodes. Consistent with previous studies, and with the Snake Detection Theory, the EPN was significantly larger for snake skin pictures than for lizard skin and bird plumage pictures, and for lizard skin pictures than for bird plumage pictures. Likewise, the EPN was larger for partially exposed snakes than for partially exposed lizards and birds. The results suggest that the EPN snake effect is partly driven by snake skin scale patterns which are otherwise rare in nature.

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confidence: 99%

Snake scales, partial exposure, and the Snake Detection Theory: A human event-related potentials study

Strien

Isbell

2017

Sci Rep

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“…Realistic-looking models of these predators engendered the same recognition of potential threats that characterized the actual threats (Coss & Ramakrishnan, 2000;Meno, Coss, & Perry, 2013).…”

Section: Discussionmentioning

confidence: 99%

Risk Assessment by British Children and Adults

Penkunas¹,

Coss²,

Shultz³

2014

IJPS

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We present data illustrating how preschool-aged British children ranked the danger of different situations and adults rated various external causes of mortality. Ranks were calculated from 34 children's ratings of dangers presented by eight scenarios using a three-dimensional diorama. Lion and hippopotamus figurines were presented to characterize historical threats with intentional agency. Children ranked the lion followed by the hippopotamus as presenting the greatest danger. When these ranks were pooled to reflect a general category of animal attacks, the children's ranks failed to reflect the national statistics on childhood deaths. Adult ratings for the prevalence of 20 external causes of mortality in the general public were positively correlated with the actual frequency of mortality due to these causes. Nevertheless, adults were seen to underestimate their personal susceptibility to the same dangers. Children and adults differ in risk assessment based initially on early childhood predispositions, with experience altering risk assessment to match the local environment.

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“…; Meno et al. ). Immature individuals acquire the appropriate response to the alarm calls by observing adults (Seyfarth & Cheney ; Mateo & Holmes ; Hollén & Manser ; Meno et al.…”

Section: Introductionmentioning

confidence: 98%

Development in the Usage and Comprehension of Greeting Calls in a Free‐Ranging Group of Japanese Macaques (Macaca fuscata)

2014

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The main objective of this study is to clarify the developmental process involved in both the usage of greeting calls and the response to greeting calls by Japanese macaques. These greeting calls facilitate affiliative interactions by communicating benign intent. Specifically, individuals frequently emit greeting calls when interacting with less‐predictable individuals. Here, we examined whether the targets at which greeting calls are directed, along with associated behavioral responses, differed among the age classes, by conducting a cross‐sectional observation of females aged 0–5 yr and their mothers. We found that infant females showed a weak tendency to emit greeting calls at no specific receivers, unlike that by older females. Adult females emitted greeting calls more frequently when approaching unrelated females than related females. In contrast, young adult or juvenile females exhibited no significant difference in the proportion of the calls with related and unrelated conspecifics. Adult and young adult females were more likely to respond affiliatively to other individuals that approached using greeting calls compared with silent approaches, whereas juveniles did not exhibit different responses to the two types of approaches. This study showed that the target‐specific usage and affiliative response to greeting calls emerge with changes in the developmental stage. Furthermore, the fact that even young adults did not use greeting calls as adults indicates that the usage of greeting calls is modified in conjunction with the expansion of social relationships.

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Development of Snake‐Directed Antipredator Behavior by Wild White‐faced Capuchin Monkeys: I. Snake‐Species Discrimination

Cited by 44 publications

References 29 publications

Snake scales, partial exposure, and the Snake Detection Theory: A human event-related potentials study

Snake scales, partial exposure, and the Snake Detection Theory: A human event-related potentials study

Risk Assessment by British Children and Adults

Development in the Usage and Comprehension of Greeting Calls in a Free‐Ranging Group of Japanese Macaques (Macaca fuscata)

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