[ACT-R-users] different base level activations

[Sarah Schimke]

Hello,
thank you very much for your answers to my last question. I
have a new problem now:

Is there a way to give different base level activations to
different chunks or different chunk types?
In my model, one type of chunk should be harder to retrieve
than the other chunks, so I would like to give such a chunk
a lower base level activation at the moment of its creation
(it does not exist from the beginning).

Thank you, Sarah Schimke