Programa de Pós-Graduação em Neurociências e Comportamento - PPGNC/NTPC
URI Permanente desta comunidadehttps://repositorio.ufpa.br/handle/2011/10669
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Navegando Programa de Pós-Graduação em Neurociências e Comportamento - PPGNC/NTPC por Orientadores "GALVÃO, Olavo de Faria"
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Item Acesso aberto (Open Access) Expressões vocais e interação social em macacos-prego (sapajus sp.).(Universidade Federal do Pará, 2017) RIBEIRO, Bruno Diego Lima; SILVA, Maria Luisa da; http://lattes.cnpq.br/2101884291102108; GALVÃO, Olavo de Faria; http://lattes.cnpq.br/7483948147827075Communication is an intrinsic characteristic of living beings. Each animal communicates with others of its own or of other species in the characteristic forms of their respective groups. In social interactions individuals produce communicative signals that specify or predict likely behavioral changes in other individuals, whose responses, in turn, also generate likely behavioral changes in the former. Vocalization is an important element in animal communication and the investigation of its functions can constitute a comparative model for understanding the evolution of human communication. This study aimed to identify symbolic phenomena of communication between capuchin-monkeys (Sapajus sp.) in social interactions. Activities and social interactions in defined periods throughout the day were observed through the methods of scan sample and ad libitum. Vocalizations emitted in spontaneous occurrences (agonistic, alarm and feeding) and in planned experiments (alarm production) were recorded and described. Recordings of the vocalizations were presented to the individuals, and the behavioral responses were recorded and described. The behavior observed in captivity, compared to records in nature, presents alterations as a restricted diversity of social interactions, for example. In the vocal repertoire we identified different vocalizations related to specific behaviors, appropriate to the context. Our results are in agreement with indications of brain plasticity and social complexity of the Sapajus genus.Item Acesso aberto (Open Access) Modelagem da resposta de arrastar um cursor numa tela sensível ao toque em macacosprego (Sapajus spp.).(Universidade Federal do Pará, 2016-11-07) SERIQUE, Igor Dias; MONTEIRO, Dionne Cavalcante; http://lattes.cnpq.br/4423219093583221; GALVÃO, Olavo de Faria; http://lattes.cnpq.br/7483948147827075Longlived animals have expressive motor development during life time. Fine movements are part of the adaptation to environmental needs. Movements improve with exercise while antecipation of obstacles and movement corrections are learned as a function of results obtained. With the new interactive computer technologies, the use of the touchscreen now requires a number of movements to accomplish tasks that involve the understanding of the stimulus presented and the relations among them. Studies on the manual skill and the use of tools in capuchin monkeys indicate that besides the touch the capuchin monkey would be able, for example, to "drag" stimuli between two conspicuous points on the screen after shaping of this response. This study is an original experience of teaching capuchins to drag stimuli to a target, a first step for later studies including targets and decoys. Four capuchins served as subjects (genera Sapajus spp.) of this study that aimed to verify whether capuchin monkeys would learn to drag stimuli on a "touchscreen". After the shapping of the response by differential reinforcement the subjects were trained to drag a circle presented in the center of the screen until reaching a gradually larger circle around it. Results showed that the drag response, including simple and conditional “drag to a target” can be used with these subjects, and will possibly allow a new generation of research on cognition and symbolic potential, allowing to teach new stimulus relations repertoires and emergent relations tests.