WMCapacity (version 0.9.6.4)

VisualArray: Working memory visual array change detection responses

Description

This dataset contains the (cleaned) data which was analyzed in Rouder, Morey, Cowan, Zwilling, Morey, and Pratte (2008).

Usage

data(VisualArray)

source

Rouder, J. N., Morey, R. D., Cowan, N., Zwilling, C. E., Morey, C. C. & Pratte, M. S. (2008). An Assessment of Fixed-Capacity Models of Visual Working Memory. Proceedings of the National Academy of Sciences, 105, 5976-5979.

Details

Each trial consisted of a presentation of N colored squares in an array, followed by a mask, and then a single square. The square was either the same color or a different color than the one in the same location in the first array. The participant responded ``change'' if they believed the square was different.

Examples

data(VisualArray)
## Aggregated hit and false alarm rates
tapply(VisualArray$resp,list(VisualArray$ischange,
       VisualArray$N,VisualArray$prch),mean)