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. Author manuscript; available in PMC: 2011 Dec 8.
Published in final edited form as: J Neurosci. 2011 Jun 8;31(23):8502–8511. doi: 10.1523/JNEUROSCI.0208-11.2011

Fig. 6. Model components for each set size, in sequential and simultaneous presentation.

Fig. 6

Model parameters are shown for sequences (black) and for simultaneous presentation (red). (A) Variability of responses, as expressed by the concentration parameter of their distribution, increased as more items were stored in memory; this effect was not different between sequential and simultaneous presentation. (B) Probability of responding according to the target’s orientation decreased with increasing set size and it was lower in sequences. (C) There was a corresponding significant increase in the probability of responding according to a non-target orientation; this component was greater in sequential than in simultaneous presentation. (D) Random responses (guessing) also increased with increasing number of items and were more likely in sequences. Note that, in sequences, the non-target component (C) was significantly higher than the random one (D); this was not the case in simultaneous presentation, where there was no significant difference between these two components.