Control subjects' dissociated performance during both memory tests suggests that the short-term memory test induced a retroactive interference effect mediated through light opioid system activation; such effect was prevented either by low dose naltrexone administration or by strongly activating the opioid system through acute stress.
Nevertheless, the finding of doubly dissociated performance profiles between B.R. and W.W. here (Table 3) suggests that relations between the dimensions of musical knowledge are modular, rather than (strictly) hierarchical, in keeping with current theoretical and empirical formulations (Peretz and Coltheart, 2003; Peretz and Zatorre, 2005).
At the level of dopamine neurons, knock outs of burst generating NMDA receptors in mice, with resulting decreases in responses to reward predicting stimuli, lead to a range of learning deficits, including conditioned place preference, maze learning and operant conditioning, that are dissociated from performance deficits [ 83,84,85].
Recently, we described a psychophysical procedure to dissociate objective performance from adult participants' evaluation of their performance (Fleming, Weil, Nagy, Dolan, & Rees, 2010).
Nevertheless, in order to dissociate the performance timing bias from the task multidimensional interrelations, we performed an ANOVA where the constant error ([produced or estimated interval] - target interval) was the dependent variable and the implicit/explicit, the number of timed intervals, the perception/production, and the modality were used as factors.
Our results dissociate reversal performance from go/no-go learning and appetitive extinction and support the plasticity allele framework that suggests BDNF Met carriers are potentially more sensitive to changes in the environment.
This research is very important and exciting when considering past studies of place learning ability in adult rats and research attempts to dissociate motor performance from true cognitive processing.
This paradigm gives the opportunity to dissociate poor performance along these measures (cue approach acquisition, spatial acquisition, and short-term and long-term spatial memory), which can allow accurate study of animal deficit.
However, experiments on saccadic eye movements are usually designed in such a way that oculomotor performance is dissociated from the natural role of saccades, namely that of making crucial perceptual information rapidly available for high-resolution, foveal analysis.
Next we investigated whether experimental manipulations may dissociate the objective performance and participant's subjective confidence report, by studying objective performance at a fixed value of the subjective confidence score as a function of the critical experimental variable – the ISI (Figure 2D).
Experiment 2 also had a secondary goal of examining the factors that may dissociate final test performance between the Interim Testing and Emphasized Details groups.
