These mean RTs are shown in Fig. 6A. The expected location congruency effects were observed: responses were fastest when the target appeared in a location that was congruent with the required response, and slowest when the target

appeared in a location that was congruent with the response opposite that required to the target incongruent condition; [F(2, 627) = 7.37, p = .001]. Also, as expected, responses made with the left (non-alien) hand were significantly faster than responses made with the right (alien) hand [F(1, 627) = 51.12, p < .001]. Importantly, the interaction between the effects of hand and congruency did not approach statistical significance [F(2, 627) < 1]. As noted above, a delta plot can Etoposide molecular weight be a more sensitive way of examining RT effects than comparing average RTs. Therefore, we have plotted the spatial congruency effect (incongruent RT − congruent RT) over 8 RT bins (see Fig. 6B) according to the procedures described above. The pattern of spatial congruency effects was similar for both hands, and the effect did not reach significance at the beginning or end of the distribution for either hand.3 In summary, there is no evidence that the spatial congruency effects on RT were different

for the alien and non-alien hand. Error responses were detected in 9.8% of all trials in the Masked Priming task. Table 2 shows how many this website trials of each type (divided by prime-target SOA, prime-target compatibility, and location-target

congruence) contained an erroneous response (out of a maximum of 28 trials in each cell). Note that trial types are divided according to the correct response, so for example an error occurring on a prime incompatible trial means that the prime was incompatible with the correct response Calpain required to the target (and so primed a response in the incorrect hand). As shown in Table 2, most errors were observed in the right (alien) hand in response to a target requiring a left hand response (62/66 errors were of this type). These errors were more frequent when the target was in the incongruent (i.e., rightward) location – suggesting that the patient might have been responding to the location of the target rather than to its identity. The pattern of errors suggests that there may have been a hint of an interaction between the effects of hand and spatial congruency on error rates. However, as there were so few errors detected in the left (non-alien) hand, we cannot meaningfully compare erroneous left- and right-hand responses in different conditions. Continuous force responses from both hands of a single patient with AHS due to CBS were measured while she completed two experimental tasks designed to investigate automatic action priming and control. The results presented here show two potentially theoretically important findings.