The weak selectivity to emotional valence of this region has been suggested by animal and human lesion studies, respectively showing that the PFC is not critical for acquiring a fear conditioned response [43] and for the association formation of stimuli with a negative meaning [44].
Indeed, and while the study results may be explainable by the non-associative account offered by Menzies and colleagues [ 39- 41], there appears to be little direct support for the proposal that latent inhibition can explain the absence of fears in people who have experienced a traumatic event with a stimulus but not acquired a fear of that stimulus.
If that were the case, then the receiver rats that emitted USVs early on, starting with the first footshock, would acquire a stronger fear association than those that emitted USVs after the second or third footshock (Fig. S4A), based on the traditional view of CS-US contingency in the classical conditioning [37].
In this study we used sPCA to extract a spatial pattern of activated LA neurons that could statistically distinguish between brains that did or did not acquire an auditory fear memory.
Only DS animals showed evidence of having acquired a conditioned fear response, as indicated by robust freezing; whereas control, IS and LI animals did not (group main effects: F3, 27 = 7.53, P = .001; P's<.05 for DS vs. all other groups, Tukey's HSD).
Moreover, these skiers based in the East — Shiffrin included — acquired a no-fear mind-set when racing on hard, icy courses common to the region.
Ivo Daalder, a senior fellow at the Brookings Institution, has described the European quandary this way: "Either they differentiate their security from that of the United States, thus bringing about the very decoupling they fear, or they acquire a similar degree of protection by deploying missiles of their own".
Now the fear is that it will acquire a reputation for cheapness.Special report No worries?
The word has two simultaneous meanings: the fear of acquiring a deformity and the fear or revulsion of deformity in someone else.
The NS consists of 18 items previously found to have good reliability and validity representing cognitions about dental injections, including general fear of injection and pain, fears related to local anesthesia, fear of acquiring a disease as a result of the injection, and fear of sustaining an injury as a result of the injection.
When I started to accept that I liked men at 16, I also acquired a deep sense of fear over HIV.
