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  • 1
    Electronic Resource
    Electronic Resource
    Recruiting responses in the cerebral cortex produced by putamen and pallidum stimulation (1970)
    Springer
    Experimental brain research 10 (1970), S. 236-250 
    Details
    ISSN: 1432-1106
    Keywords: Putamen ; Pallidum ; Cortical recruiting response
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary 1. Field potentials in the cerebral cortex elicited by low frequency (6–10/sec) repetitive stimulation of the putamen (Put) and pallidum (Pal) were recorded by glass microelectrodes inserted at various depths in the cortex and analysed together with those evoked by stimulation of different thalamic nuclei. Surface cortical potentials recorded by a gross electrode and intracellular potential changes in cortical neurones were also provided to complement field potential analysis. 2. Stimulation of putamen or pallidum produced characteristic laminar field potentials which were similar to those elicited by stimulation of the centrum medianum (CM) nucleus in the thalamus. Superficial slow negative and deep positive potentials showed much the same time course as in a mirror image and the polarity change at 0.10–0.25 mm depth in the cortex. These profiles of field potentials indicate that putamen- and pallidum-induced potentials are pure recruiting responses in every respect. Latency of Put-induced responses was always longer than that of Pal- and CM-induced responses, the latter two being comparable. Duration was wider in the responses evoked by CM stimulation than those by Put and Pal. The optimal frequency for Put- and Pal-induced recruiting responses was 7–9/sec and the same as that for CM-induced responses in every experiment. 3. Current spread of Put and Pal stimulation to surrounding structures such as the internal capsule was outruled, since entirely different responses (augmenting responses) could be evoked in the cortex by stimulation of the internal capsule delivered through the same electrode after withdrawal of the electrodes by 1–2 mm from Put and Pal to the internal capsule. 4. The cortical area in which Put- and Pal-evoked recruiting responses were recorded was more restricted than the area for CM-induced recruiting responses and was mainly in area 6 a β. 5. The results lead us to refer to and discuss a hypothesis for the pathways of CM-induced recruiting responses that has been made on previous anatomical findings.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00235048
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  • 2
    Electronic Resource
    Electronic Resource
    Electrophysiological studies on cerebello-cerebral projections in the cat (1972)
    Springer
    Experimental brain research 16 (1972), S. 75-88 
    Details
    ISSN: 1432-1106
    Keywords: Cerebellum ; Thalamus ; Cerebral Cortex
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary 1. Cerebello-cerebral projections were electrophysiologically investigated in cats under light Nembutal anaesthesia. Marked responses were produced by stimulation of the interpositus and the lateral nucleus of the cerebellum not only in the pericruciate but also in the suprasylvian cortical areas, both areas being contralateral to the cerebellar nuclei stimulated. Medial nucleus stimulation set up little or no response in the cerebral cortex. 2. The previous electrophysiological study on thalamo-cortical (T-C) projections showed two different kinds of responses in the cortex due presumably to two different T-C projection systems, i. e., deep and superficial T-C responses (see Sasaki et al., 1970). According to laminar field potential analysis, the response in the pericruciate area is characterized by a deep T-C response which is often followed by a superficial T-C response, whereas the response in the parietal cortex consists of a pure superficial T-C response. Intracellular potential changes in cortical neurones elicited by cerebellar nucleus stimulation were consistent with the results of laminar field potential analysis. 3. Comparison between laminar field potentials in the same cortex produced by thalamic and cerebellar nucleus stimulation suggests that the response in the pericruciate cortex is mediated by the ventral lateral nucleus and that the response in the parietal cortex is relayed by the ventral anterior nucleus of the thalamus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00233375
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  • 3
    Electronic Resource
    Electronic Resource
    On the cerebello-thalamo-cerebral pathway for the parietal cortex (1972)
    Springer
    Experimental brain research 16 (1972), S. 89-103 
    Details
    ISSN: 1432-1106
    Keywords: Cerebellum ; Thalamus ; Parietal Cortex
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary 1. The cerebello-thalamo-cerebral projection system mediating the cerebellar-induced “superficial thalamo-cortical (T-C) response” (the basic type of the so-called recruiting response) to the anterior part of the middle suprasylvian gyrus was investigated electrophysiologically. Responses of thalamic neurones to stimulation of the cerebral cortex and the cerebellar nucleus (medial, interpositus and lateral) were recorded by microelectrodes. 2. In the anterior portions of the ventral thalamic nuclear complex, presumably in and/or around the ventral anterior (VA) nucleus, there were found neurones responding antidromically to stimulation of the suprasylvian cortex and orthodromically to that of the interpositus and the lateral nucleus of the cerebellum. They were called P neurones. The neurones responding antidromically to stimulation of the anterior sigmoid cortex and orthodromically to that of the cerebellar nuclei located mostly caudo ventrolateral to the place of P neurones, presumably in and/or around the ventral lateral (VL) nucleus. These were called F neurones. 3. The cerebellar excitation of P neurones was estimated on its latency to be monosynaptic and was usually followed by an inhibition lasting for more than 100 msec. Large unitary EPSPs were sometimes noted in P neurones on cerebellar stimulation as well as spontaneously. It was concluded that P neurones constitute the direct T-C projection system mediating the superficial T-C response (e. g., recruiting response) to the parietal cortex.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00233376
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  • 4
    Electronic Resource
    Electronic Resource
    Structure and absolute configuration of breynolide, C15H22O7S (1974)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 30 (1974), S. 1347-1350 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S056774087400478X
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  • 5
    Electronic Resource
    Electronic Resource
    Dihydroxyisoasatone, C24H36O8 (1974)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 30 (1974), S. 1619-1620 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567740874005413
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  • 6
    Electronic Resource
    Electronic Resource
    Structure of a new daphniphyllum alkaloid, daphnilactone B, by direct phase determination (1973)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 29 (1973), S. 547-553 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567740873002888
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  • 7
    Electronic Resource
    Electronic Resource
    Histochemical interpretation of fluorescein angiogram (1973)
    Springer
    Graefe's archive for clinical and experimental ophthalmology 188 (1973), S. 33-42 
    Details
    ISSN: 1435-702X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The characteristics of the localization of fluorescein in the iris, ciliary body and retina were studied in the monkey eye by the whole mount preparation and paraffin section methods. By incident light fluorescence microscopy and transparent fluorescence microscopy the penetration of free fluorescein into the outer retinal layer as well as into of the nonpigmented epithelium of the ciliary body is noted. The site of the permeability barrier for protein-bound fluorescein is postulated in the pigment epithelium and the ciliary epithelium. From the anatomical and embryological points of view, the two kinds of epithelium may have the same tendency as to the permeability of fluorescein. The whole mount preparation of the posterior pole is fairly well reminiscent of the fluorescein angiogram and can demonstrate the superficial reticular, radial epipapillary, radial peripapillary and retinal capillaries. In addition to the capillary nets and typical background fluorescence, dark cracks are recognized in the retina, suggesting that the choroidal fluorescence is not responsible for background fluorescence. Cross sections of the macula indicate that the blood-retinal barrier in the macula is highly restrictive against the inward penetration of the dye in contrast to other sites. The result is quite compatible with the assumption that the poor penetrance is one of the major contributors of the macular dark spot.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00410863
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