1983
DOI: 10.1207/s15327752jpa4705_3
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Marijuana-Induced Primary Process Thought in the TAT

Abstract: Seventy-two normal adult male subjects wrote TAT stories under baseline and either placebo- or marijuana-ingestion conditions. Marijuana subjects received 20 mg. doses of delta-9 tetrahydrocannabinol. The stories were keypunched and content analyzed with the Regressive Imagery Dictionary, which yields a score for primary process content. Results indicate that marijuana, relative to placebo, caused subjects to write stories with a higher proportion of primary process content than they had included in baseline s… Show more

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Cited by 42 publications
(9 citation statements)
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“…A number of studies have been performed using the RID to measure primary and secondary process content in texts and verbal speech. The results support the validity of the RID, for example, marijuana produced more primary process content in written stories (West, Martindale, Hines, & Roth, 1983), paranoid schizophrenic participants produced more primary process content in free speech samples than did nonschizophrenic paranoids and nonpsychotic psychiatric patients (West & Martindale, 1988), and psilocybin, a hallucinogen, induced more primary process content (Martindale & Fisher, 1977). Primary process content in written stories was related to creativity as measured with the Alternate Uses Test, remoteness of word associations, and rated creativity in the written stories (Martindale & Daily, 1996).…”
supporting
confidence: 53%
“…A number of studies have been performed using the RID to measure primary and secondary process content in texts and verbal speech. The results support the validity of the RID, for example, marijuana produced more primary process content in written stories (West, Martindale, Hines, & Roth, 1983), paranoid schizophrenic participants produced more primary process content in free speech samples than did nonschizophrenic paranoids and nonpsychotic psychiatric patients (West & Martindale, 1988), and psilocybin, a hallucinogen, induced more primary process content (Martindale & Fisher, 1977). Primary process content in written stories was related to creativity as measured with the Alternate Uses Test, remoteness of word associations, and rated creativity in the written stories (Martindale & Daily, 1996).…”
supporting
confidence: 53%
“…In a study of a patient with Gilles de la Tourette's syndrome, primary process content occurred more in sentences containing verbal tics than in sentences not containing tics (Martindale, 1977). Both psilocybin (Martindale & Fischer, 1977) and marijuana (West, Martindale, Hines, & Roth, 1983) produce increases in the primary process content of verbal productions. Fantasy stories told by hypnotized subjects contain more primary process content than those told by nonhypnotized subjects (Comeau & Farthing, 1985).…”
mentioning
confidence: 99%
“…This is quite different from most other word-count strategies, which make assumptions about the relationship between word categories and what they reveal about underlying psychological characteristics. For example, Martindale's (West et al 1983) regressive image method breaks a large sample of common words into 'concept' words as opposed to sensory words, and holds that those who use concept words are less aligned with the primordial impulses than those who use sensory words. Thus, to 'travel' involves a concept because it does not mention the means of locomotion.…”
Section: The Independent Variablesmentioning
confidence: 99%