and US inputs. Further, CS-elicited responses in LA cells are modified after pair-ing with the US (Quirk et al 1995, 1997) (Figure 5). Conditioned plasticity also occurs the auditory cortex (Weinberger 1995, 1998; Quirk et al 1997). How-ever, the response latencies in LA within trials in B (Maren et al 1991, Uwano et ) and CE (Pascoe & Kapp 1985) during aversive conditioning, but the acoustic responses latencies both before and after conditioning are longer than in LA. LA thus seems to be both the initial point of sensory processing and the initial site of plasticity in the amygdala. Long-Term Potentiation LTP is a physiological procedure pioneered in studies of the hippocampus (Bliss & Lomo 1973) and is believed to engage the cellular mechanisms similar to those that underlie natural learning (see Lynch 1986, Bliss CAl region of the hippocampus and involves the interaction between presynaptic of postsynaptic receptors (Nicoll & Malenka 1995). of studies ofL TP in the amygdala, mostly involving

DOI link for and US inputs. Further, CS-elicited responses in LA cells are modified after pair-ing with the US (Quirk et al 1995, 1997) (Figure 5). Conditioned plasticity also occurs the auditory cortex (Weinberger 1995, 1998; Quirk et al 1997). How-ever, the response latencies in LA within trials in B (Maren et al 1991, Uwano et ) and CE (Pascoe & Kapp 1985) during aversive conditioning, but the acoustic responses latencies both before and after conditioning are longer than in LA. LA thus seems to be both the initial point of sensory processing and the initial site of plasticity in the amygdala. Long-Term Potentiation LTP is a physiological procedure pioneered in studies of the hippocampus (Bliss & Lomo 1973) and is believed to engage the cellular mechanisms similar to those that underlie natural learning (see Lynch 1986, Bliss CAl region of the hippocampus and involves the interaction between presynaptic of postsynaptic receptors (Nicoll & Malenka 1995). of studies ofL TP in the amygdala, mostly involving

and US inputs. Further, CS-elicited responses in LA cells are modified after pair-ing with the US (Quirk et al 1995, 1997) (Figure 5). Conditioned plasticity also occurs the auditory cortex (Weinberger 1995, 1998; Quirk et al 1997). How-ever, the response latencies in LA within trials in B (Maren et al 1991, Uwano et ) and CE (Pascoe & Kapp 1985) during aversive conditioning, but the acoustic responses latencies both before and after conditioning are longer than in LA. LA thus seems to be both the initial point of sensory processing and the initial site of plasticity in the amygdala. Long-Term Potentiation LTP is a physiological procedure pioneered in studies of the hippocampus (Bliss & Lomo 1973) and is believed to engage the cellular mechanisms similar to those that underlie natural learning (see Lynch 1986, Bliss CAl region of the hippocampus and involves the interaction between presynaptic of postsynaptic receptors (Nicoll & Malenka 1995). of studies ofL TP in the amygdala, mostly involving