flankr provides functions to simulate and fit the dual stage two phase model (DSTP) and the shrinking spotlight model (SSP) of attentional selectivity. The fitting routine utilises the optim function in base R and finds model parameters that reduces the wilks likelihood ratio chi square between model predictions and human data (example data is provided in the package). BIC values based on response time bins are also provided to allow the user to engage in model comparison exploration.
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