C code available for model of STM for serial order.

[Neil Burgess - Anatomy UCL London]

The C code for the simulations in the following paper is available on:
http://behemoth.maze.ucl.ac.uk/neil/PL_sim/

code and executables for running under MS windows/DOS can be found on:
http://behemoth.maze.ucl.ac.uk/neil/PL_simPC/


MEMORY FOR SERIAL ORDER: A NETWORK MODEL OF THE PHONOLOGICAL LOOP 
AND ITS TIMING. 
N Burgess & GJ Hitch (1999) Psychological Review 106 551-581.

Abstract:
A connectionist model of human short-term memory is presented that
extends the `phonological loop' (A. D. Baddeley, 1986) to encompass serial
order and learning.  Psychological and neuropsychological data motivate
separate layers of lexical, timing and input and output phonemic
information.  Connection weights between layers show Hebbian learning and
decay over short and long time scales. At recall, the timing signal is rerun,
phonemic information feeds back from output to input and lexical nodes
compete to be selected. The selected node then receives decaying inhibition.
The model provides an explanatory mechanism for the phonological loop, and
for the effects of serial position, presentation modality, lexicality,
grouping and Hebb repetition. It makes new psychological and
neuropsychological predictions and is a starting point for understanding the
role of the phonological loop in vocabulary acquisition and for interpreting
data from functional neuroimaging.

Best wishes,

Neil