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In the second phase of the experiment, the Unconditioned Stimulus (US) and salivation dog was kept hungry and placed in harness which follows it, an Unconditioned Response with one end of the tube ending in the jaw (UR). After conditioning, salivation started to and the other end in the glass jar. A bell was occur in the presence of the sound of the bell. ThebellbecomesaConditionedStimulus(CS) One-way and saliva secretion a Conditioned Response glass wall (CR). This kind of conditioning is called classical conditioning. The procedure is Food illustrated in Table 5.1. It is obvious that the learning situation in classical conditioning is one of S–S learning in which one stimulus (e.g., sound of bell) becomes a signal for anotherstimulus(e.g.,food).Hereonestimulus signifies the possible occurrence of another stimulus. Examples of classical conditioning abound Tube from Cup for Recording in everyday life. Imagine you have just finished salivary glandsmeasuring saliva device your lunch and you are feeling satisfied. Then you see some sweet dish served on the Fig.5.1 : A Dog in Pavlovian Harness for Conditioniadjoining table. This signals its taste in your mouth, and triggers the secretion of saliva. You soundedandimmediatelythereafterfood(meat feellikeeatingit.Thisisaconditionedresponse powder) was served to the dog. The dog was allowed to eat it. For the next few days, (CR). Let us take another example. In the early stages of childhood, one is naturally afraid of everytime the meat powder was presented, it any loud noise. Suppose a small child catches was preceded by the sound of a bell. After a an inflated balloon which bursts in her/his number of such trials, a test trial was introduced in which everything was the same hands making a loud noise. The child becomes afraid. Now the next time s/he is made to hold as the previous trials except that no food a balloon, it becomes a signal or cue for noise followed the sounding of the bell. The dog still andelicitsfearresponse.Thishappensbecause salivated to the sound of the bell, expecting presentation of the meat powder as the sound of contiguous presentation of balloon as a of bell had come to be connected with it. This conditioned stimulus (CS) and loud noise as an unconditioned stimulus (US). association between the bell and food resulted in acquisition of a new response by the dog, i.e. salivation to the sound of the bell. This hasDeterminants of Classical Conditioning been termed as conditioning. You may have How quickly and strongly acquisition of a noticed that all dogs salivate when they are response occurs in classical conditioning presented with food. Food is thus an depends on several factors. Some of the major T able5.1 Relationship of Stages of Conditioning and Operations Stages of Nature of Stimulus Nature of Response Conditioning Before Food (US) Salivation (UR) Sound of the Bell Alertness (No Specific Response) During Sound of the Bell (CS) + Food (US) Salivation (UR) After Sound of the Bell (CS) Salivation (CR) 80 Psychology Reprint 2026-27