Emetic and electric shock alcohol aversion therapy: Assessment of conditioning.

20 male alcoholic volunteers (mean age 42 yrs) were randomly assigned to 1 of 3 groups: emetic aversion conditioning, shock aversion conditioning, or a no-treatment control group. All Ss participated in psychophysiological assessment sessions and taste-test sessions before and after conditioning. Dependent measures all indicated that only emetic Ss acquired aversions to alcohol. (53 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The retention and generalization of operant conditioning effects in an interview situation.

In a study of the conditioning of complex verbal habits, each of 30 female Ss had her established verbal habits assessed in 2 sessions by being asked to talk about herself. In subsequent sessions, the Ss in the experimental groups were positively reinforced (by a head nod and an "mm-hm") for either independence or affection statements, whereas control groups Ss were reinforced every 30 sec. regardless of the content of their speech. The results showed that: conditioning occurred, i.e., the experimental Ss increased in their use of the reinforced category; retention also occurred, i.e., the conditioning effects were stable over a 24-hr. period; and generalization did not occur. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Conditioned preferences in the rat with an unnatural need state: Morphine withdrawal.

Placed 30 morphine addicted and 15 nonaddicted female albino rats on a 21-day conditioning regimen which involved the daily alternation of access to either water, sucrose-octa-acetate (SOA), or no liquid for 1 hr. The addicted Ss received injections of morphine after either the SOA sessions or the no-liquid sessions. Nonaddicted Ss were injected with morphine after the SOA sessions. Following the last injection, Ss were given a 2-bottle preference test between SOA and water. Results show that the addicted Ss that received morphine-SOA pairings had an increased preference for SOA, whereas the nonaddicted Ss showed a decrease in SOA preference after the same conditioning treatments. Addicted Ss that received the morphine injections on the no-liquid days showed no change in SOA preference. (21 ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

"CS and UCS intervals and orders in human autonomic classical differential trace conditioning": Erratum.

Reports an error in "CS and UCS intervals and orders in human autonomic classical differential trace conditioning" by John J. Furedy (Canadian Journal of Psychology Revue Canadienne de Psychologie, 1970[Dec], Vol 24[6], 417-426). The diagram appearing in this erratum should be substituted for the diagram appearing as Figure 2 on p. 423 of the article. (The following abstract of the original article appeared in record 1971-24206-001.) Measured the GSR and digital volume-pulse change in 4 groups of 80 Ss each with light and tone as CS and shock as UCS. For Groups I and II, the CS-UCS interval was .75 and 7.5 sec., respectively; for Groups III and IV, the UCS-CS interval was .75 and 7.5 sec., respectively. Group III showed 'backward' differential conditioning in the GSR; Group II yielded reliable conditioning of 'multiple responses' occurring before UCS onset; the magnitude and extent of conditioning was greater in Group I than in Groups II and III, which did not differ; some evidence for 'reverse' conditioning was suggested in Group IV, with slightly greater responding to the CS not paired with the UCS; instructions which distracted 1/2 the Ss from the CS did not affect responding to those stimuli. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Emetic and electric shock alcohol aversion therapy: Six- and twelve-month follow-up.

Reports follow-up data for 20 male alcoholics who received either a multifaceted inpatient alcoholism treatment program alone (controls) or emetic or shock aversion therapy in addition to that program. Results indicate that emetic treatment exerted a modest beneficial effect at the 6-mo mark, but control and emetic Ss did not differ at the 12-mo mark. Both emetic and control Ss compiled more days of abstinence than shock Ss at both follow-up intervals. Analysis of the relationship between inpatient measures of the strength of alcohol aversions and posttreatment drinking revealed an inverse relationship between heart rate response to alcohol and number of days of drinking. (46 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Instructions as discriminative stimuli in verbal conditioning and awareness.

This investigation was to study the effects of preconditioning instructions and type of reinforcer on level of awareness and extent of conditioning. Prior to a conditioning task, Ss in different experimental groups were given varying degrees of information concerning the nature of the reinforcement and the reinforcement contingency. In some groups of Ss the reinforcement consisted of E saying "good" while in other experimental groups the Ss received points as reinforcement. The results indicated that the degree of conditioning and level of awareness were partially dependent upon the amount of information in the preconditioning instruction. However, in experimental groups where only partial information was given, Ss who received points conditioned better than Ss who received "good" even though there were no differences in the level of awareness. The nature of the response class was also found to be an important variable that affected the level of conditioning. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Changes in physiological and verbal responses of child molesters during aversion therapy.

10 19-33 yr old child molesters were each given 20 classical conditioning type aversion therapy sessions and 3 assessment (generalization) test sessions (before, after 10, and after 20 treatment sessions). Shock was the UCS. Larger skin conductance responses were made to child slides than to adult slides in all sessions. Penile circumference responses indicated a small positive shift in sexual preference in the assessment tests when averaged over Ss. Pre- and posttreatment semantic differential and slide-ranking sexual preference measures also showed increases in sexual preferences for adults relative to sexual preferences for children. (15 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Adrenal responses to reinforcement and extinction: Role of expectancy versus instrumental responding.

Measured plasma corticosterone levels during operant conditioning to determine the effect of reinforced and nonreinforced responding (extinction) on adrenal activation; Ss were 44 male Long-Evans rats. The influence of instrumental responding was assessed by comparing trained Ss with yoked Ss that received a matched reward schedule in the absence of an operant task. Reinforcement sessions resulted in a significant decrease in adrenal secretion at 20 min but not at 5 min, whereas extinction caused a rapid increase in corticosterone levels at 5 min and an even greater elevation at 20 min. Comparison of the operant and yoked Ss showed that this effect of reinforcement and extinction was not dependent on instrumental responding, but rather on the receipt or withdrawal of the expected reward. (21 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Measurement and training of AVC discrimination skills: Independent confirmation and extension.

Describes the AVC test of discrimination skills developed by N. Kerr et al (see record 1981-23872-001) and presents 2 validation studies of the test. In Study 1, 135 mentally handicapped Ss (aged 17–60 yrs) were assessed on all 6 levels of the AVC and 42 Ss were retested at 3-mo follow-up. Results are consistent with the findings of Kerr et al and support the AVC's reliability and resistance of AVC behaviors to change without systematic training. Study 2 examined the potential of the AVC for predicting performance of 6 severely retarded Ss (aged 21–50; Stanford-Binet IQs 30–36) who were learning a vocational assembly task. Findings reveal that brief training sessions were as effective as extended ones in teaching the tasks and that the AVC was an accurate predictor of Ss' performance. (5 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Flavor preferences produced by backward pairing with wheel running.

In 3 experiments rats given 8 sessions of preexposure to wheel running acquired a preference for a flavor that was given immediately after each of 4 subsequent sessions of wheel running. Such flavor preference was less likely when rats were given the same conditioning procedure but without preexposure to wheels (Experiment 1) or when access to flavor was delayed by 30 min following a wheel session (Experiment 2). When rats were given a flavor before each wheel session, the resulting conditioned aversion was greater in rats that had no prior exposure to wheel running (Experiment 3). These results show that whether an aversion or preference for a flavor is produced by wheel running depends on an interaction between prior wheel experience and the sequence of events. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Anxiety (drive) level and performance in eyelid conditioning.

Studies from the Iowa laboratory and elsewhere that have involved a comparison of the eyelid conditioning performance of Ss scoring at the extremes of the Taylor Manifest Anxiety (MA) scale are reviewed. In 21 of 25 independent comparisons, differences between groups were in favor of the high anxiety (HA) Ss, with the majority being statistically significant. Although these data provide substantial confirmation of the implication of the drive interpretation of MA scale that HA Ss should exhibit a higher level of performance than LA Ss, an attempt was made to ascertain what factors might be responsible for failure of the difference to occur in some studies. The major factors appeared to be small numbers of Ss and the presence of "voluntary form" responders in the samples. Significant differences appear to be related to the degree of experimental naiveté of the Ss and the extent to which the experimental situation is designed to arouse some degree of apprehensiveness. (20 ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Learned avoidance of flavors signaling reduction in a nutrient.

Food-deprived rats learned to avoid a flavor negatively correlated with access to a rich nutrient, 20% maltodextrin (20M) solution. This avoidance in two-bottle choice tests was produced by training consisting of either an unpaired condition where sessions of unflavored 20M were intermixed with sessions of 2 or 3% maltodextrin (2M or 3M) flavored with salt (Experiment 1) or almond (Experiments 3 and 4) or a differential conditioning procedure where one flavor was mixed with 20M and another with 2M (Experiment 2). Avoidance was counter-conditioned by mixing the target flavor with 20M (Experiment 1), generalized to a neutral context (Experiment 3), and displayed strong resistance to extinction (Experiment 4). The results demonstrated that food avoidance learning can occur in the absence of an aversive unconditioned stimulus and indicated that unpaired control groups and differential conditioning procedures may be misleading in flavor preference learning research when further control conditions are absent. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Interaction of set and awareness as determinants of response to verbal conditioning.

The utility of an operant conditioning model to psychotherapy was evaluated by studying the definition of the situation given S and S's focus on E's behavior. Instructions induced either a positive or negative set, identifying a story telling task as a test of empathy or personal problems. Awareness was induced in ? of the Ss by calling attention to E's reinforcement "mm-hmm." 12 undergradate students served as Ss in each of the 4 experimental groups. Positive set-Aware Ss increased use of emotional words, while Negative set-Aware Ss decreased use of emotional words. The results were interpreted as evidence that awareness can either facilitate or inhibit conditioning, depending upon S's set. (26 ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A direct laboratory comparison of Pavlovian conditioning and traditional associative learning.

24 adult human Ss were presented with a learning task which combined salivary conditioning with traditional associative learning: paired-associate learning of a 50 word Russian-English vocabulary and serial motor learning of a sequence of 100 adjacent bolts. Conditioning proceeded best when Ss did not know they were being conditioned, while associative learning was reasonably effective when Ss knew what they were associating. The view is expressed that the present data support strongly the hypothesis that Pavlov's laws of conditioning are primarily laws of unconscious biological learning. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Studies in efficiency: Verbal conditioning as a function of degree of task centering. A replication.

The present study is an approximate replication of an experiment by Letchworth and Wishner (1962). Its substantive purpose was to test the effects on verbal conditioning of self- and other centered (SC and OC) instructions in interaction with 2 types of task orienting instructions. From the concept of efficiency it was predicted that there would be a significant interaction of the following form: SC Ss would have a relatively higher rate of conditioning than OC Ss under relaxed instructions, while the reverse would be true under problem instructions. Procedural changes from the previous study were incorporated in order to increase experimental control. A significant interaction supported the experimental hypothesis and duplicated the results of the previous study. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Sex and anxiety differences in eyelid conditioning.

Data concerning the relationship between eyelid conditioning performance and 2 S variables, Ss' sex, and scores on the MA scale, are examined. In studies employing standard procedures, high-anxiety Ss were superior to low-anxiety Ss in 23 of 27 comparisons, and females superior to males in 18 of 19 comparisons. In contrast, the direction of the differences was split approximately equally between high- and low-anxiety Ss and between males and females in studies in which conditioning was presented within the context of masking probability-learning task. (31 ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Interrelationships among individual difference variables, behavior in psychotherapy, and verbal conditioning.

3 variables studied were S's score on personality inventory scales, therapists' rating of S's behavior in the psychotherapy situation, and Ss performance in a verbal conditioning situation. The Ss were 60 neurotic and psychotic patients, 58 of whom were men; the Autobiographical Survey was the Personality inventory. With regard to the Autobiographical Survey, high scores on the Test Anxiety and Lack of Protection scales were associated with higher levels of verbal conditioning; high Defensiveness scores with poor verbal conditioning. Patients rated by their psychotherapists as being very compliant were found to perform in the verbal conditioning at a higher level than patients rated as being relatively noncompliant. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Hypotheses and habits in verbal "operant conditioning.'

The traditional explanation of experiments related to conditioning of verbal behavior in terms of operant conditioning, i.e., learning without awareness, was questioned. It was hypothesized that such conditioning to cues given by E might be based on S's awareness of the cue and assumed meaning of such a stimulus. 2 experiments were performed, 1 where plural nouns were reinforced, and a 2nd to test the generalization of this acquired pattern on a word association test. The usual findings re: conditioning of plural nouns was replicated and there seemed to be a carry-over of the set to the word association test. However, some Ss seemed to be aware of the meaning of such a reinforcer as "um-hm." Moreover, response set was also seen to affect conditionability. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

GSR reactivity as a function of anxiety, instructions, and sex.

"GSR conditioning and extinction measures were obtained on 120 college Ss in a factorial experimental design in which 12 treatment groups were divided into 2 sex groups, 3 instruction groups, and high- and low-anxiety groups. The 3 instruction groups were given 3 different kinds of instruction designed to be: (a) apprehension arousing; (b) neutral; and (c) reassuring." Male Ss showed less conditioning when given reassuring instructions; female Ss showed the least conditioning with the apprehension-arousing instructions. Females showed greater GSR reactivity than males in all phases of the experiment. (PsycINFO Database Record (c) 2010 APA, all rights reserved)