|
Linking neurobiological and behavioral models in 2-choice decision making| old_uid | 2538 |
|---|
| title | Linking neurobiological and behavioral models in 2-choice decision making |
|---|
| start_date | 2007/03/26 |
|---|
| schedule | 16h |
|---|
| online | no |
|---|
| summary | The response behaviors in many two-alternative choice tasks are well described by so-called information accumulator models. In these models the evidence for each one of the two alternatives accumulates over time until it reaches a threshold at which point a response is made. At the neurophysiological level, single neuron data recorded while subjects are engaged in two-alternative choice tasks are well described by winner-take-all attractor network models in which the two choices are represented in the firing rate of separate populations of neurons. Here we show that such high-dimensional attractor network models can be reduced to a single non-linear diffusion equation. This equation can be interpreted in the framework of information accumulator models of behavior and our analysis suggests a strong link between the detailed models of neuronal networks and phenomenological models of behavior. |
|---|
| responsibles | Brunel |
|---|
| |
|