Double dissociation, modularity, and distributed organization

Double dissociation, modularity, and distributed organization

Miiller argues that double dissociations do not imply underlying modularity of the cognitive system, citing neural networks as examples of fully distributed systems that can give rise to double dissociations. We challenge this claim, noting that such double dissociations typically do not "scale-up," and that even some single dissociations can be difficult to account for in a distributed system....

Double dissociation without modularity: evidence from connectionist neuropsychology.

Many theorists assume that the cognitive system is composed of a collection of encapsulated processing components or modules, each dedicated to performing a particular cognitive function. On this view, selective impairments of cognitive tasks following brain damage, as evidenced by double dissociations, are naturally interpreted in terms of the loss of particular processing components. By contr...

Modularity and Economic Organization:

This paper addresses modularity as a basis for organizing economic activity. We first define the key concepts of architecture and of modularity as a special form of architecture. We then suggest how modular systems of all types may exhibit several properties of fundamental importance to the organization of economic activities, including greater adaptability and evolvability than systems that la...

Evidence of Double Dissociation in Auditory Agnosia: Implications for Rehabilition

Modularity in Technology, Organization, and Society