Narrative discourse of young and older brazilian adults associated with demographic factors.

Purpose: 1) Compare the discourse performance between young and older adults from the Brazilian Federal District (DF); 2) Compare the mean discourse performance of participants from the DF with the normative discourse of a population from a different region of the country; 3) Verify whether the variables age, educational level and socioeconomic status and scores on the cognitive, behavioral and functional screening tests were associated with discourse performance.

Method: A total of 60 healthy volunteers from the DF, 30 older adults and 30 young adults, were selected. Participants were divided into two subgroups according to educational level: low education and high education.

Phonetic-phonological performance of typical younger and aged adults from Brazil's capital city.

Unlabelled: Given the sociodemographic diversity in Brazil, it is fundamental to understand the speech performance of a sample from the Brazilian capital. The repetition task can assess phonological and motor-phonetic planning. Previous studies found phonological-phonetic performance of speakers to be associated with education, age, and other demographic factors.

Do capuchin monkeys (Cebus apella) diagnose causal relations in the absence of a direct reward?

We adapted a method from developmental psychology to explore whether capuchin monkeys (Cebus apella) would place objects on a "blicket detector" machine to diagnose causal relations in the absence of a direct reward. Across five experiments, monkeys could place different objects on the machine and obtain evidence about the objects' causal properties based on whether each object "activated" the machine. In Experiments 1-3, monkeys received both audiovisual cues and a food reward whenever the machine activated.