Vocabulary Networks: Program-13

  Use these boxes to set the basic parameters for your model

  NTWK sets up the network for this simulation. Choose a number between 0000 and 9999 for this parameter.
  

  nEv sets how many events will occur in your simulation. Choose a number between 0 and 800 for this parameter.
  

  rEv determines which words are affected by your instructions. Choose a number between 0 and 9999 for this parameter.
  

   




  This simulation illustrates how a vocabulary network
  responds when some of its words become harder to
  activate.
  The progran builds a 1000 word network and lets it
  settle into a stable attactor state. The program then
  implements nEv attrition events. Events raise the
  activation threshold of one word.
 
  THINGS TO DO.
  Find a network with a low level of activation.
  Set nEv to 20 and run the simulation.
  How does the network respond to events?
  Now increase the value of the nEv parameter.
  What is the smallest value of nEv that causes your
  network to move to a new attractor state?

  QUESTIONS TO ASK.
  How does your network respond to an attrition event?
  Do all events have the same effect on your network?
  Why do some events have no effect at all?
 
  What implications does this set of behaviours have
  for theories of L2 vocabulary acquisition?