Online research in philosophy

We are encouraged that the majority of commentators endorse our evolutionary framework for studying culture, and several suggest extensions. Here we clarify our position, dwelling on misunderstandings and requests for exposition. We reiterate that using evolutionary biology as a model for unifying the social sciences within a single synthetic framework can stimulate a more progressive and rigorous science of culture. (Published Online November 9 2006).

We suggest that human culture exhibits key Darwinian evolutionary properties, and argue that the structure of a science of cultural evolution should share fundamental features with the structure of the science of biological evolution. This latter claim is tested by outlining the methods and approaches employed by the principal subdisciplines of evolutionary biology and assessing whether there is an existing or potential corresponding approach to the study of cultural evolution. Existing approaches within anthropology and archaeology demonstrate a good match with (...) the macroevolutionary methods of systematics, paleobiology, and biogeography, whereas mathematical models derived from population genetics have been successfully developed to study cultural microevolution. Much potential exists for experimental simulations and field studies of cultural microevolution, where there are opportunities to borrow further methods and hypotheses from biology. Potential also exists for the cultural equivalent of molecular genetics in “social cognitive neuroscience,” although many fundamental issues have yet to be resolved. It is argued that studying culture within a unifying evolutionary framework has the potential to integrate a number of separate disciplines within the social sciences. (Published Online November 9 2006) Key Words: cultural anthropology; cultural evolution; cultural transmission; culture; evolution; evolutionary archaeology; evolutionary biology; gene-culture coevolution; memes; social learning. (shrink)

Various deficits in the cognitive functioning of people with autism have been documented in recent years but these provide only partial explanations for the condition. We focus instead on an imitative disturbance involving difficulties both in copying actions and in inhibiting more stereotyped mimicking, such as echolalia. A candidate for the neural basis of this disturbance may be found in a recently discovered class of neurons in frontal cortex, 'mirror neurons' (MNs). These neurons show activity in relation both to specific (...) actions performed by self and matching actions performed by others, providing a potential bridge between minds. MN systems exist in primates without imitative and ‘theory of mind’ abilities and we suggest that in order for them to have become utilized to perform social cognitive functions, sophisticated cortical neuronal systems have evolved in which MNs function as key elements. Early developmental failures of MN systems are likely to result in a consequent cascade of developmental impairments characterised by the clinical syndrome of autism. (shrink)

Byrne & Russon rightly draw attention to complex and neglected aspects of ape imitation. However, program-level imitation as a single, absolute category may mislead us in understanding abstractions involved in imitation. Designing the right experiments will offer clarity. One recent experiment has shown imitation of sequential structure: What is needed to test other components of what the authors propose?

I focus on the logic of the goggles experiment, which if it as watertight as Heyes argues, should clearly support ape theory of mind if positive, and clearly reject it if negative. This is not the case, since the experiment tests for only one kind of mindreading, “experience projection”: but it is an excellent test for this, given adequate controls.

This book presents an alternative to conventional ideas about the evolution of the human intellect.