Experiences in K and -K
Related Experiment Video
Updated: Aug 12, 2026

Double-barreled and Concentric Microelectrodes for Measurement of Extracellular Ion Signals in Brain Tissue
Published on: September 5, 2015
12340 Ward St, Suite 106, Berkeley, CA 94705, USA. drjaschneider@yahoo.com
Abstract:
In this paper the author explores and expands Bion's concepts of K and -K and delineates the nature of the relationship between the two. While Bion views envy as a principal motivating force for -K, his conception of -K goes considerably beyond this. The author explores manifestations of -K not driven by envy and, consequently, not necessarily pathological or pathogenic. -K is viewed by the author as a psychological process, which may serve many functions, including the communication of the patient's fear that knowing will bring on psychological catastrophe. -K, under circumstances that he describes, may serve to protect the individual's sense of continuity of being. The need to know the truth (K) may be at odds with the need to survive psychically, for example, when a person fears that the truth will kill him, or those he loves and depends upon. This idea is explored in two ways: first, by means of a discussion of the Oedipus myth in which Oedipus attempts to evade knowing for fear of recognizing that a prophesied catastrophe has already occurred; and, second, by means of a clinical exploration of the conflict between the need to know and the need to survive. The author discusses his analytic work with a severely disturbed patient for whom not knowing was felt to be essential to her psychic survival. Her need not to know reached a point where she psychically obliterated the analyst through the use of negative hallucination.
More Related Videos
11:20Making, Testing, and Using Potassium Ion Selective Microelectrodes in Tissue Slices of Adult Brain
Published on: May 7, 2018
07:04A High-performance Liquid Chromatography Measurement of Kynurenine and Kynurenic Acid: Relating Biochemistry to Cognition and Sleep in Rats
Published on: August 19, 2018
Related Concept Videos
The Equilibrium Constant
Relative Strengths of Conjugate Acid-Base Pairs
Acid and Bases: Ka, pKa, and Relative Strengths
Extraction: Partition and Distribution Coefficients
For extracting a solute from an aqueous phase into an organic...
Atomic Nuclei: Nuclear Spin State Population Distribution
One-Compartment Open Model: Wagner-Nelson and Loo Riegelman Method for ka Estimation
On...