Split Brains and Psychoanalysis

Hoppe, Klaus D.

doi:10.1080/21674086.1977.11926798

Cited by 147 publications

(49 citation statements)

References 9 publications

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“…This result of a facilitated bidirectional TCT via the corpus callosum (CC) clearly contradicts the hypothesis of a dysfunction of the CC in alexithymia that was proposed following studies with 'split-brain' patients [13,14] and studies evaluating the quality of the interhemispheric transfer by means of the tactile fi nger localization task [15][16][17] .…”

mentioning

confidence: 81%

Transcallosal Inhibition in Patients with and without Alexithymia

et al. 2006

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Objective: Previous results indicated a facilitated transcallosal inhibition via the corpus callosum (CC) in alexithymic male students. This study investigates transcallosal inhibition in alexithymic and nonalexithymic psychiatric inpatients. Method: Transcallosal inhibition was elicited by means of transcranial magnetic stimulation (TMS) of the primary motor cortex. Seven right-handed male and 12 female psychiatric patients with Toronto Alexithymia Scale (TAS-20) scores of ≧61 and 12 patients with TAS-20 scores of <51 were investigated. The transcallosal conduction time (TCT) reflects the TMS-induced inhibitory cortical activity that is mediated via the CC. Results: There was a significant effect of alexithymia on TCT (Wilks λ = 0.76; F = 4.1; d.f. = 2, 26; p = 0.027) indicating that alexithymic patients had shorter bidirectional TCTs than nonalexithymic patients. The in-between models showed a significant impact of alexithymia on both right to left TCT (F = 4.8; d.f. = 1; p = 0.038) and left to right TCT (F = 5.0; d.f. = 1; p = 0.033). Neither gender nor scores of depression (Montgomery-Asberg Depression Rating Scale) had any significant effects on TCT. Conclusion: Our results confirm and extend the previous findings of a facilitated, bidirectional transcallosal inhibition in alexithymia to male and female psychiatric inpatients. Facilitated transcallosal inhibition should be considered as a neurobiological correlate of alexithymia.

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confidence: 81%

Transcallosal Inhibition in Patients with and without Alexithymia

et al. 2006

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“…The examinations of five females and seven male split-brain individuals, all but one of them right-handed and between the ages of 21 and 50 years old, revealed a paucity of dreams, fantasies and sym bols. The dreams lacked condensation, displacement and symbolizations; the fantasies were unimaginative, tied to reality and utilitarian, the symbolization was concretistic, dis cursive and rigid (Hoppe, 1975(Hoppe, , 1977.…”

Section: Methodsmentioning

confidence: 99%

Alexithymia in Twelve Commissurotomized Patients

Hoppe

Bogen²

1977

Psychother Psychosom

Self Cite

153

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“…For example, during the period following the publication of research on split-brain patients (e.g., Gazzaniga, 1967;Sperry, 1968), Galin (1974) suggested that a functional disconnection between the two hemispheres (referred to as "functional commissurotomy" by Hoppe, 1977) might be the neural mechanism for repression. Galin wrote: "Mental events in the right hemisphere can become disconnected functionally (by inhibition of neuronal transmission across the cerebral comissures) and can continue a life of their own" (p. 572).…”

Section: Repression and Neural Processesmentioning

confidence: 99%

The Neural Basis of the Dynamic Unconscious

Berlin

2011

Neuropsychoanalysis

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A great deal of complex cognitive processing occurs at the unconscious level and affects how humans behave, think, and feel. Scientists are only now beginning to understand how this occurs on the neural level. Understanding the neural basis of consciousness requires an account of the neural mechanisms that underlie both conscious and unconscious thought, and their dynamic interaction. For example, how do conscious impulses, thoughts, or desires become unconscious (e.g., repression) or, conversely, how do unconscious impulses, desires, or motives become conscious (e.g., Freudian slips)? Research taking advantage of advances in technologies, like functional magnetic resonance imaging, has led to a revival and re-conceptualization of some of the key concepts of psychoanalytic theory, but steps toward understanding their neural basis have only just commenced. According to psychoanalytic theory, unconscious dynamic processes defensively remove anxiety-provoking thoughts and impulses from consciousness in response to one's conflicting attitudes. The processes that keep unwanted thoughts from entering consciousness include repression, suppression, and dissociation. In this literature review, studies from psychology and cognitive neuroscience in both healthy and patient populations that are beginning to elucidate the neural basis of these phenomena are discussed and organized within a conceptual framework. Further studies in this emerging field at the intersection of psychoanalytic theory and neuroscience are needed.Keywords: unconscious; psychodynamic; repression; suppression; dissociation; neural "Nothing is so difficult as not deceiving oneself."Ludwig Wittgenstein Cognitive unconscious processingThe intricate relationship between conscious and unconscious processes is one of the many mysteries that continue to perplex our understanding of ourselves.

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Split Brains and Psychoanalysis

Cited by 147 publications

References 9 publications

Transcallosal Inhibition in Patients with and without Alexithymia

Transcallosal Inhibition in Patients with and without Alexithymia

Alexithymia in Twelve Commissurotomized Patients

The Neural Basis of the Dynamic Unconscious

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