We tested for significant deviation of the predictive index this website from chance level (0.5) using a permutation test (104 permutations) (Nichols and Holmes, 2002). All data analyses were performed in Matlab (MathWorks, Natick, MA) and C with custom software and several open source Matlab-toolboxes: Fieldtrip (http://www.ru.nl/fcdonders/fieldtrip/), SPM2 (http://www.fil.ion.ucl.ac.uk/spm/), and FastICA (http://www.cis.hut.fi/projects/ica/fastica/). We thank T.H. Donner, C.

Hipp, T.J. Buschman, J. Roy, G.G. Supp, and E.K. Miller for helpful discussions and comments on the manuscript. This work was supported by grants from the European Union (IST-2005-027268, NEST-PATH-043457, and HEALTH-F2-2008-200728), the German Research Foundation (GRK 1247/1 and 1247/2), and the German Federal Ministry of Education and Research (01GW0561, Neuroimage Nord). “
“(Neuron 68, 857-864; December 9, 2010) In the Discussion section, it is erroneously stated that the vacuolar protein Adriamycin datasheet sorting 54 protein (the gene responsible for motor neuron degeneration in the wobbler mouse) is the mouse homolog of the human valosin-containing protein. VCP and VPS54 are not structurally or functionally homologous. “
“You’re offered alternative options (“Tea or coffee?”), assign and compare their value (“I prefer coffee …”), picture the consequences of making a choice based upon experience (“… but it is getting late …”),

and then, all of a sudden, you’ve made a decision.

What is the neural basis for how we decide? Psychological and neurophysiological studies in humans and nonhuman primates have provided fundamental understanding of the steps of the decision-making process and their associated Diminazene brain regions (Kable and Glimcher, 2009), but higher-resolution analysis in these animals presents significant technical challenges. Organisms with much simpler nervous systems must also make choices, such as that of leeches to swim or crawl in shallow waters (Kristan, 2008), or those of nematode worms when evaluating potential food sources (Rankin, 2006). While these model systems may not exhibit the depth of our conscious reflections, they open the possibility to characterize the contributions of individual neurons to the decision-making process and, thereby, perspectives into ancestral cellular mechanisms of this important property of neural circuits. The fruit fly, Drosophila melanogaster, is a particularly attractive experimental system to study decision-making because it offers powerful genetic tools to control (and monitor) the function of small populations of neurons in the brain and determine the effect on simple behavioral choices in intact animals ( Olsen and Wilson, 2008). One of the most important decisions for Drosophila is—as in many other organisms—with whom to mate ( Dickson, 2008 and Manoli et al., 2006).