| Reference code: | PT/FB/BL-2004-074.04 |
| Location: | Arquivo PCA - Pasta 11/2004
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Title:
| High performance REG array with simultaneous Read-Out - Exploration of a new REG design, involving self-selective amplification and EEG triggered read-out for PK studies
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| Publication year: | 2006
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URL:
| http://www.bial.com/imagem/1178809516livroactas.pdf
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| Abstract/Results: | ABSTRACT:
OBJECTIVES:
Construction of a physical random event generator (REG) with fast parallel processing based on FPGA
technology, achieving local coupling with the environment through an explicit trigger-feedback loop. To deliberately influence the outcome of random bit generation by means of internal and external trigger signals, while still maintaining the null-hypothesis. We will argue in favor for systemic closure as the key to unify the views of influence and data selection theories.
METHODS:
Electronic transistor noise is amplified and digitized, oscillating randomly between two states, a frequency divider assures exact 50% unbiased duty cycle at a mean frequency about 1.3 MHz. Comparison of three triggering modes: Internal triggers drawn from the output bit sequence itself, external EEG modulated triggers, and fixed frequency triggers. Sampling is realized in 4-5 channels at a mean frequency about 1 kHz for trials of 200 bit samples drawn in parallel from the stream, hits and transitions are counted. Acoustic feedback is given by ascending and descending tones based on the cumulative deviation score, while a participant is asked to keep an intention of increasing, or lowering the tones.
RESULTS:
15 human subjects participated in experiments each comprising 13 sets of combinations of trigger modes and intention conditions. Each set generated 1.2 MBits of data in 4 channels. Autocorrelation is less than 1%. Control runs satisfy the normality condition imposed to maintain the null-hypothesis. Larger deviations
were observed in sets where participants were allowed a new method of partially inverting the meaning of hits and misses (M-switch), indicating a pre-cognitive factor present.
CONCLUSION:
It seems that significant hit rates can be achieved by operationally closing a system made of an entropy source and a conscious observer, suggesting that the triggered REG is more sensitive to local interaction with the environment than more conventional setups. The main ingredient is an explicit trigger-feedback loop that
involves a participant who attributes meaning to a sequence of events.
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| Accessibility: | Document exist in file (poster)
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Copyright/Reproduction:
| By permission
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Language:
| eng
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Notes:
| Abstract and respective poster in attachment |
| Author: | Walach, H.
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Secondary author(s):
| Faul, T., Bösch, H., Braeunig, M.
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Document type:
| Conference abstract
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Number of reproductions:
| 2
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Reference:
| Walach, H., Faul, T., Bösch, H., & Braeunig, M. (2006). High performance REG array with simultaneous Read-
Out - Exploration of a new REG design, involving self-selective amplification and EEG triggered read-out for PK studies. In Aquém e além do cérebro. Behind and beyond the brain. Proceedings of the 6th Symposium of Fundação Bial (pp. 269-270). Porto: Fundação Bial.
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| Indexed document: | No
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| Keywords: | Triggered REG / Meaning / Biofeedback / Operational closure / Parapsychology
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