Ake Hellstrom

The time-order error and its relatives: Mirrors of cognitive processes in comparing.

Ake Hellstrom, A. Hellstrom, 1985 .

The normal distribution in scaling subjective stimulus differences: Less normal than we think?

Ake Hellstrom, A. Hellstrom, 2010 .

Factors producing and factors not producing time errors: An experiment with loudness comparisons

Ake Hellstrom, A. Hellstrom, 2010 .