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  • Articles  (37)
  • Male  (37)
  • Cell & Developmental Biology
  • American Association for the Advancement of Science (AAAS)  (37)
  • 1980-1984  (37)
  • 1981  (37)
  • Natural Sciences in General  (37)
Collection
  • Articles  (37)
Publisher
  • American Association for the Advancement of Science (AAAS)  (37)
Years
  • 1980-1984  (37)
Year
Topic
  • 1
    Publication Date: 1981-08-21
    Description: A new technique has been developed for identifying, in humans, dynamic spatiotemporal electrical patterns of the brain during purposive behaviors. In this method, single-trial time-series correlations between brain macropotentials recorded from different scalp sites are analyzed by distribution-independent mathematical pattern recognition. Dynamic patterns of correlation clearly distinguished two brief visuomotor tasks differing only in type of mental judgement required (spatial or numeric). These complex patterns shifted in the anterior-posterior and left-right axes between successive 175-millisecond intervals, indicating that many areas in both cerebral hemispheres were involved even in these simple judgements. These patterns were not obtainable by conventional analysis of averaged evoked potentials or by linear analysis of correlations, suggesting that the new technique will advance the study of human brain activity related to cognition and goal-directed behaviors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gevins, A S -- Doyle, J C -- Cutillo, B A -- Schaffer, R E -- Tannehill, R S -- Ghannam, J H -- Gilcrease, V A -- Yeager, C L -- New York, N.Y. -- Science. 1981 Aug 21;213(4510):918-22.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7256287" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Brain/*physiology ; *Cognition ; Electroencephalography ; *Evoked Potentials ; Female ; Humans ; Male ; Pattern Recognition, Visual/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 1981-09-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goldberg, E -- Antin, S P -- Bilder, R M Jr -- Gerstman, L J -- Hughes, J E -- Mattis, S -- New York, N.Y. -- Science. 1981 Sep 18;213(4514):1392-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7268442" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Amnesia/etiology/*physiopathology ; Amnesia, Retrograde/physiopathology ; Humans ; Male ; Memory/*physiology ; Mesencephalon/injuries/*physiopathology ; Skull Fractures/complications
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
    Publication Date: 1981-07-24
    Description: The effects of amitriptyline, lithium, and electroconvulsive shock on cerebral permeability and blood flow were tested. These three treatments share in common (i) the ability to influence the functional activity of central adrenergic neurons by way of effects on the release, reuptake, or metabolism of norepinephrine and (ii) therapeutic efficacy in mood disturbances. Under control conditions, cerebral permeability increases linealy with increasing arterial partial pressure of carbon dioxide and hence cerebral blood flow. All three treatments altered this relationship in a manner consistent with their adrenergic effects. Amitriptyline potentiated this increase in cerebral permeability whereas lithium and electroconvulsive shock blunted this phenomenon. These results support the hypothesis that one function of central adrenergic neurons is regulation of the blood-brain barrier and raise the possibility that a related effect may underlie the clinical usefulness of such treatment.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Preskorn, S H -- Irwin, G H -- Simpson, S -- Friesen, D -- Rinne, J -- Jerkovich, G -- GM15956/GM/NIGMS NIH HHS/ -- MH-00272/MH/NIMH NIH HHS/ -- NS17252/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1981 Jul 24;213(4506):469-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7244645" target="_blank"〉PubMed〈/a〉
    Keywords: Amitriptyline/*pharmacology ; Animals ; Blood-Brain Barrier/*drug effects ; Brain/drug effects/*metabolism ; Electroshock ; Lithium/*pharmacology ; Male ; Rats ; Regional Blood Flow/drug effects
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
    Publication Date: 1981-12-11
    Description: An animal model of tardive dyskinesia was used to evaluate the potential antidyskinetic properties of the neuropeptide L-prolyl-L-leucyl-glycinamide (PLG). In rats, PLG administered concurrently with the neuroleptic drug haloperidol or chlorpromazine antagonized the enhancement of specific [3H]spiroperidol binding in the striatum that is associated with long-term neuroleptic treatment. The results are discussed in relation to a possible functional coupling of the putative PLG receptor with neuroleptic-dopamine receptor complex and clinical implications for tardive dyskinesia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chiu, S -- Paulose, C S -- Mishra, R K -- New York, N.Y. -- Science. 1981 Dec 11;214(4526):1261-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6117947" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Butyrophenones/*metabolism ; Chlorpromazine/*pharmacology ; Corpus Striatum/*metabolism ; Haloperidol/*pharmacology ; Kinetics ; MSH Release-Inhibiting Hormone/*pharmacology ; Male ; Rats ; Rats, Inbred Strains ; Receptors, Dopamine/drug effects/*metabolism ; Spiperone/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
    Publication Date: 1981-06-12
    Description: Muscle phosphoglycerate mutase activity was decreased (5.7 percent of the lowest control value) in a 52-year-old man with intolerance for strenuous exercise and recurrent pigmenturia since adolescence. All of the other enzymes of glycolysis had normal activities, and glycogen concentration was normal. Electrophoretic, heat lability, and mercury inhibition studies showed that the small residual activity in the patient's muscle was represented by the brain (BB) isoenzyme of phosphoglycerate mutase, suggesting a genetic defect of the M subunit which predominates in normal muscle. The prevalence of the BB isoenzyme in other tissues, including muscle culture, may explain why symptoms were confined to muscle.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉DiMauro, S -- Miranda, A F -- Khan, S -- Gitlin, K -- Friedman, R -- AM-25599-02/AM/NIADDK NIH HHS/ -- NS-11766-07/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1981 Jun 12;212(4500):1277-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6262916" target="_blank"〉PubMed〈/a〉
    Keywords: Brain/enzymology ; Glycolysis ; Humans ; Isoenzymes/metabolism ; Male ; Middle Aged ; Muscles/*enzymology ; Muscular Diseases/enzymology/*genetics ; Organ Specificity ; Phosphoglycerate Mutase/*deficiency/metabolism ; Phosphorylases/metabolism ; Phosphotransferases/*deficiency ; Reference Values
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-11-06
    Description: Parenteral and intracerebroventricular administration of calcitonin in rats resulted in the suppression of gastric acid secretion. This suppression also occurred in rats with insulin-induced hypoglycemia and after the administration of thyrotropin-releasing hormone. Intracerebroventricularly administered calcitonin was 1000 times more effective than parenterally administered calcitonin in suppressing gastric acid secretion. Calcitonin also inhibited the development of stress-induced ulcers in rats.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morley, J E -- Levine, A S -- Silvis, S E -- New York, N.Y. -- Science. 1981 Nov 6;214(4521):671-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7292006" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*drug effects ; Calcitonin/administration & dosage/*pharmacology ; Gastric Juice/*secretion ; Injections, Intraventricular ; Male ; Peptic Ulcer/etiology ; Rats ; Rats, Inbred Strains ; Stress, Physiological/complications
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
    Publication Date: 1981-09-25
    Description: The effects of long-term lithium administration on pre- and postsynaptic processes involved in serotonergic neurotransmission were measured in rat hippocampus and cerebral cortex. Long-term lithium administration increased both basal and potassium chloride-stimulated release of endogenous serotonin from the hippocampus but not from the cortex. Serotonergic receptor binding was reduced in the hippocampus but not in the cortex. These results suggest a mechanism by which lithium may stabilize serotonin neurotransmission.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Treiser, S L -- Cascio, C S -- O'Donohue, T L -- Thoa, N B -- Jacobowitz, D M -- Kellar, K J -- DA 02540/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 1981 Sep 25;213(4515):1529-31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6269180" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Transport/drug effects ; Butyrophenones/*metabolism ; Cerebral Cortex/metabolism ; Hippocampus/*drug effects ; Lithium/*pharmacology ; Male ; Rats ; Receptors, Serotonin/*drug effects ; Serotonin/*metabolism ; Spiperone/*metabolism ; Synapses/drug effects ; Synaptic Transmission/drug effects
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
    Publication Date: 1981-05-15
    Description: Two distinct serotonin (5-hydroxytryptamine) receptors designated serotonin 1 and serotonin 2 bind tritium-labeled serotonin and tritium-labeled spiroperidol, respectively. Drug potencies at serotonin 2 sites, but not at serotonin 1 sites, predict their effects on the "serotonin behavioral syndrome," indicating that serotonin 2 sites mediate these behaviors. The limited correlation of drug effects with regulation by guanine nucleotides suggests that serotonin 1 sites might be linked to adenylate cyclase. Drug specificities of serotonin-elicited synaptic inhibition and excitation may reflect serotonin 1 and serotonin 2 receptor interactions, respectively.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peroutka, S J -- Lebovitz, R M -- Snyder, S H -- DA-00074/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 1981 May 15;212(4496):827-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7221567" target="_blank"〉PubMed〈/a〉
    Keywords: Adenylyl Cyclases/metabolism ; Animals ; Behavior, Animal/*physiology ; Brain/*physiology ; Guanine Nucleotides/physiology ; Kinetics ; Male ; Rats ; Receptors, Serotonin/*physiology ; Serotonin/metabolism ; Spiperone/metabolism ; Structure-Activity Relationship
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
    Publication Date: 1981-03-13
    Description: Averaged sensory-evoked potentials were recorded from the outer molecular layer of the dentate gyrus in naive rats and in rats conditioned to respond in the presence of an auditory stimulus. Two components (negative peaks) of the potentials were functionally distinguished in terms of responsiveness to unique or conditioned auditory stimuli. Each component was independently generated by a separate input pathway to the dentate gyrus: The perforant path provided an "insignificance" or "unexpected" feature of the sensory stimulus when appropriate, and the septum controlled the development of a second component as a function of the behavioral significance of the stimulus during the acquisition of auditory discrimination behavior. A reciprocal relationship between the peak amplitudes of both components of the average evoked potentials dependent on the relative behavioral significance of the sensory stimulus was observed in all animals during extinction and reconditioning of the sensory discrimination task. The findings indicate that the entorhinal and septal projections to the dentate granule cells are activated differentially by sensory stimuli as a function of their acquired behavioral significance to the animal.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Deadwyler, S A -- West, M O -- Robinson, J H -- New York, N.Y. -- Science. 1981 Mar 13;211(4487):1181-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7466392" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Auditory Perception/physiology ; Discrimination Learning/*physiology ; Evoked Potentials ; Hippocampus/cytology/*physiology ; Male ; Neural Pathways/physiology ; Rats ; Septal Nuclei/cytology/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
    Publication Date: 1981-10-16
    Description: Field potentials and extracellular potassium concentration ([K+]o) were simultaneously monitored in the molecular layer of the rat cerebellar cortex during stimulation of the parallel fibers. The synaptic field potential elicited by stimulation was reduced by several methods. Reduction of synaptic field potentials was accompanied by a marked increase in the excitability of the parallel fibers. This change in excitability was related to the degree of extracellular K+ accumulation associated with parallel fiber stimulation. These findings support the proposal that increases in [K+]o associated with activity in postsynaptic elements can modulate the excitability of presynaptic afferent fibers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Malenka, R C -- Kocsis, J D -- Ransom, B R -- Waxman, S G -- NS 15589/NS/NINDS NIH HHS/ -- NS-00473/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1981 Oct 16;214(4518):339-41.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7280695" target="_blank"〉PubMed〈/a〉
    Keywords: Afferent Pathways/*physiology ; Animals ; Calcium/physiology ; Cerebellar Cortex/*physiology ; Evoked Potentials ; Extracellular Space/physiology ; Male ; Manganese/pharmacology ; Membrane Potentials ; Potassium/*physiology ; Rats ; Rats, Inbred Strains ; Synapses/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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