Decision-Making in the Leech Nervous System

Decision-Making in the Leech Nervous System1

SYNOPSIS. Previous models of behavioral choice have described two types of hierarchy, a decision hierarchy, in which different classes of decisions are made at each level (Tinbergen, 1951), and a behavioral hierarchy, in which one behavior will take precedence over others (Davis, 1985). Most experimental work on the neuronal basis of decision-making has focussed on the latter of these: a behavi...

Statistics of decision making in the leech.

Animals continuously decide among different behaviors, but, even in invertebrates, the mechanisms underlying choice and decision are unknown. In this article, leech spontaneous behavior was tracked and quantified for up to 12 h. We obtained a statistical characterization, in space and time domains, of the decision processes underlying selection of behavior in the leech. We found that the spatia...

Decision making framework for utsourcing activities in the banking system

The outsourcing of financial services has been growing during last decades.Inspite of expanding managers awareness about this subject,most of outsourcing projects have been lost due to qualifative decision critera and ignorance of environmental circumstances. The purpose of research is to design a model for making decision about outaourcing activities in banking system.From the point of purpos...

Evidence for sequential decision making in the medicinal leech.

Decision making can be a complex task involving a sequence of subdecisions. For example, we decide to pursue a goal (e.g., get something to eat), then decide how to accomplish that goal (e.g., go to a restaurant), and then make a sequence of more specific plans (e.g., which restaurant to go to, how to get there, what to order, etc.). In characterizing the effects of stimulating individual brain...

Cell lineage in the development of the leech nervous system.