2. trace conditioning - discrete event is presented, then the US occurs. Shorter the interval the better, but as you can tell, this approach is not very effective. ... You will find it very interesting, and a wonderful example of conditioning in action. II. Operant Conditioning . Operant conditioning can be defined as a ...
Trace conditioning, a form of classical conditioning in which the presentation of the conditioned stimulus (CS) and the unconditioned stimulus (US) is separated in time by an interstimulus interval, requires an intact hippocampus. ... For example, it has been proposed that trace memories represent a form of declarative memory that requires ...
It should be noted that there appears to be some difference in hippocampal processing between trace fear and eyeblink paradigms. For example, in trace fear conditioning, lesions of the hippocampus led to deficits with a trace interval of 20 s, however no disruption was found with trace intervals of 1 or 3 s (Chowdhury et al., 2005).
In Trace Conditioning, a tone (NS) might briefly sound several seconds before the food (US) is presented. The tone does not sound during the intervening interval. Consequently, the tone (CS) may come to elicit salivation (CR) even in the absence of food. With repeated conditioning trials, salivation may become increasingly delayed to the tone ...
Trace fear conditioning is an important research paradigm to model aversive learning in biological or clinical scenarios, where predictors (conditioned stimuli, CS) and aversive outcomes (unconditioned stimuli, US) are separated in time. ... For example, in delay conditioning where conditioned responses are well characterized ...
For example, the same patients who exhibited impaired trace conditioning when the ISI was as short as 600 ms performed normally in a delay paradigm with an ISI of 750 ms . Another distinctive feature of trace conditioning is that the importance of the hippocampus is time-limited.
Trace conditioning is a type of classical conditioning in which the unconditioned stimulus (UCS) and conditioned stimulus (CS) are presented separately with an interval of time in between. Understanding of the UCS and CS are best explained with an example of salivating dogs. The UCS is the smell of food which causes the unconditioned response
There have been proposed several theories regarding the specific role of the hippocampus during trace conditioning. For example, the hippocampus may be needed to overcome stimulus discontiguity (Wallenstein et al. 1998), to time CRs accurately (e.g. Balsam et al. 2002) or to distinguish between the intertrial interval and the trace interval ...
trace conditioning By N., Sam M.S. a process in Pavlovian conditioning wherein an unconditioned stimulant and a conditioned stimulant are divided by a persistent interval , with the conditioned stimulant displayed first.
Trace conditioning: During trace conditioning the CS and US do not overlap. Instead, the CS begins and ends before the US is presented. The stimulus-free period is called the trace interval. It may also be called the conditioning interval. For example: If you sound a buzzer for 5 seconds and
Trace conditioning, a form of classical conditioning in which the presentation of the conditioned stimulus (CS) and the unconditioned stimulus (US) is separated in time by an interstimulus interval, requires an intact hippocampus. ... For example, some theories hold that the hippocampus is used to maintain a memory trace of the CS so that it ...
The medial prefrontal cortex (mPFC) is also important for trace conditioning. For example, lesion of mPFC impairs acquisition of long-interval trace but not short-interval trace or delay eyeblink CRs in the rabbit (McLaughlin, Skaggs, Churchwell, & Powell, 2002), and also impairs extinction of previously-learned trace eyeblink CRs (Weible ...
The effect of hippocampal damage is a function of the trace interval itself and does not occur because the interstimulus interval (ISI) is longer than in delay conditioning. For example, the same patients who exhibited impaired trace conditioning when the ISI was as short as 600 ms [28] performed normally in a delay paradigm with an ISI of 750 ...
For example, if the stimuli are foods, the subject must consistently come in close order, not overlap, lest conditioning not take place. One might try to solve this sequence by presenting a single trial, as opposed to a block of trials; however, a single flash trial might not work because there is a temporary trace of the amount of stimulus ...
Trace conditioning is a type of classical conditioning in which the unconditioned stimulus (UCS) and conditioned stimulus (CS) are presented separately with an interval of time in between. Understanding of the UCS and CS are best explained with an example of salivating dogs. The UCS is the smell of food which causes the unconditioned response ...
