growing usage of animals in the research projects has drawn more attention to their welfare and ethics surrounding this practice. dissemination of information about the existing ethical consideration and alternatives in animal experiments has two important functions; first, it increases the researcher's awareness of the possible methods of using animals in the experiment, and second, to ensure ...

A number of recent studies on the learning of invented patterns in symbol sequences by animals such as cottontop tamarins (Hauser, Chomsky & Fitch 2002:1578; Fitch & Hauser 2004; Hauser 2005; O’Donnell, Hauser & Fitch 2005), songbirds (Gentner 2005), and undergraduates (Fitch & Hauser 2004; Perruchet & Rey, in press) have shown interest in the contrast between two classes of sets of strings: th...

Psychologists have investigated the effects of deliberately induced stress, such as that arising from social isolation, either by solitary confinement or by separation of infant animals from their mother. Animals are also subjected to deliberate brain damage, in order to observe the effects on behaviour. Electric shocks or other painful stimuli are often used to study the process of learning wh...