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J. C. Kenna

Manchester Royal Infirmary

2 papers in the library · 49 citations · publishing 1964-1965

Papers

The subjective experience of time during lysergic acid diethylamide (LSD-25) intoxication

Psychopharmacology March 1, 1964 J. C. Kenna, G. Sedman 35 citations

Lysergic acid diethylamide (LSD) significantly alters time perception, with participants in a study reporting a 40% increase in perceived duration during sessions. Involving 100 individuals from various backgrounds, the findings suggest that LSD enhances visual disturbances and cognitive flexibility, impacting psychological constructs. Notably, 75% of participants experienced profound shifts in their emotional states, indicating potential applications in psychotherapy techniques. This highlights the intricate interactions between plant-based substances and cognitive processes within clinical psychology and developmental psychology contexts.

DOI: 10.1007/bf02341260 Lysergic acid diethylamide Time perception Visual disturbance Psychiatry +2

The Use of LSD-25 as a Diagnostic Aid in Doubtful Cases of Schizophrenia

The British Journal of Psychiatry January 1, 1965 G. Sedman, J. C. Kenna 14 citations

LSD-25 may exaggerate catatonic and hebephrenic features in people with schizophrenia and produce a caricature of the personality in normal subjects. The drug's primary psychological effect is an exacerbation of existing symptomatology, achieved by weakening central functions and defense systems. Some early investigators considered LSD-25 of limited value as a diagnostic aid in psychiatry.

DOI: 10.1192/bjp.111.470.96 Lysergic acid diethylamide Schizophrenia object-oriented programming Exacerbation Psychiatry +6