167 research outputs found
A Descriptive Analysis of the Halstead Battery of Neuropsychological Tests, the Theory of Biological Intelligence, and the Life of a Brain-Damaged Youth
No full textviii, 63 p.The purpose of this paper is to provide a composite presentation of the work done by Dr. Ward C. Halstead. It emphasizes the scope of his accomplishments rather than the depth of his research. In the first part of the paper theories of intelligence that are relevant to his work are reviewed. The Halstead Battery of Neuropsychological Tests, which he designed to measure the temporary and permanent effects of brain lesions upon higher mental processes is then discussed. His theory of biological intelligence, derived from data on the performance of normal and brain-damaged people on the battery, is described. It is defined as that type of intelligence which is disturbed by critical lesions in one or both pre-frontal lobes and is based on four factors, considered in this paper, which are differentially altered in various brain injuries. In the second part of the paper the life-history of one of Dr. Halstead’s brain-damaged patients is reviewed because it illustrates the counseling nature of his work: to help guide the brain-damaged person towards achieving his maximum potential as a human being.Department of Psychology. University of Chicago. Chicago, Illinois.Department of Medicine. University of Chicago. Chicago, Illinois
Annomus Halstead 2020, new genus
No full textAnnomus Halstead, new genus Type species. Annomus bolivianus Halstead, new species, here designated. Discussion. Two specimens (male and female) of a new, small Bolivian beetle belonging to the Silvaninae were kindly sent to the author by Dr. M. C. Thomas for study and description. The relationship with other genera within the subfamily is not clear. However, this new genus has head and pronotal puncturation that is reminiscent of the widespread Monanus (Monanus) concinnulus (Walker) and also several other members of this subgenus. Of course, the pronotum of Monanus species (both those of Monanus (Monanus) and Monanus (Monanops)) differs from that of the new genus in many characters including for example in having lateral marginal denticles, about 8–14, not 5 large teeth, and having quite different genitalia with a long and thin median strut (Halstead 1993), unlike the broad and relatively short one of Annomus. Diagnosis. Characters which, apart from the general facies probably have significance for recognition of other members of Annomus, include the following: male genitalia of similar form to that illustrated (Fig. 121–122); a pair of setae on each pronotal lateral tooth; large punctures producing reticulation on pronotum; eyes large and prominent, equally exposed above and below; tarsal formula 5-5-5, with tarsomeres 1–3 each produced below to form an obvious lobe (Fig. 120).Published as part of Halstead, David G. H., 2020, New and little known Coleoptera (Silvanidae: Silvaninae) from Central and South America, pp. 1-37 in Insecta Mundi 2020 (842) on page 33, DOI: 10.5281/zenodo.535410
Brain and Intelligence, a Quantitative Study of the Frontal Lobes
No full textWard C.Halstead. Brain and Intelligence, a Quantitative Study of the Frontal Lobes. Chicago: The University of Chicago Press, 1947
Over a period of twelve years, 1935 to 1947, Halstead gave a special battery of tests to 50 cases of cerebral lobectomy, of which 28 were frontal, and to 187 other experimental and control subjects. The effect of experimental anoxia on the test scores is reported. Clinical psychologists will view Halstead\u27s research with mixed feelings. Its undeniable virtues lie in the long-continued work on one problem, in the experimental precision of the testing procedures, and in the close coordination of the psychological and neurological study. Brain and Intelligence raises enough challenging questions to stimulate another generation of research work on the interrelations between experimental, clinical, and physiological psychology. (PsycINFO Database Record (c) 2016 APA, all rights reserved)https://digitalcommons.rockefeller.edu/jason-brown-library/1011/thumbnail.jp
Halstead Neuropsychological Battery
No full textComes with category test on piece of cardboard. Combination of neuropsychological tests used to assess the possible physical aspects and localization of neurological damage. It was developed by Dr. Ward C. Halstead, who was chairman of the Psychology Department at the University of Chicago, and his student, Ralph Reitan
Austronausibius wagneri Halstead 2020, new combination
No full textAustronausibius wagneri (Grouvelle), new combination (Fig. 28–38) Nausibius wagneri Grouvelle 1913: 316 (type examined). Discussion. Many years ago, Dr A. O. Bachmann (MACN), following a request, kindly sent a small number of mainly unidentified Argentinian silvanids to the author. These included three male specimens which, apart from the strongly developed genae, compared well with Nausibius wagneri Grouvelle, a species described from one female collected in Argentina and not recorded since. Grouvelle’s name label on the type specimen is as follows, “Anausibius wagneri ty. Grouv.”, probably showing that at some point he had intended to erect a new genus for this beetle. The three males have the general facies of beetles placed in Austronausibius, particularly of males of A. leai Halstead and A. aemulus Halstead, and consequently N. wagneri is here transferred to Austronausibius. This genus seems to be predominantly an Australian genus as species previously placed in it are all from this continent. Austronausibius wagneri is so far the only member of the genus that has been found outside Australia and currently the only species known to occur in South America. Diagnosis. Austronausibius wagneri is readily distinguished from other known species of Austronausibius by the form of the male genitalia, particularly the relatively straight parameres and the arrangement of their setae. Description. The following description is based on the female type and 3 males, one larger than the other two, measurements and ratios are given for all four specimens, males in ascending order of size. Length, female 4.5 mm (Grouvelle gives 4.2 mm), males 4.2, 4.2, 5.7 mm, ratio breadth to length, female 10:36, males 10:39, 39, 43. Dark brown, head moderately shining, rest of body appearing duller due to puncturation and pubescence (cuticle shining), moderately depressed, setae golden. Head. Genae expanded and raised, slightly in female seen (Fig. 33), moderately to very strongly in males (Fig. 28–32); ratio of length of head to breadth across genae female, 10:13, males, 10:27, 27, 40; clypeus and frontal region convex, depression present between this region and genae (above antennal insertions); eyes not very prominent but more so than temple, eyes dorsally separated by 9.3× (female), 7.4, 8.0, 9.9× (males) breadth of eye in dorsal view; temple less than tenth length of eye; antenna (Fig. 29), ratio of length (excluding pedicel, which is largely hidden beneath gena) to that of body, female 10:58, males 10:54, 56, 64, antennomere 11 terminating in a small process; puncturation strong (punctures deep) and dense, punctures generally separated by diameter or less, except towards clypeus and vertex where separated by slightly more than diameter and at sides towards eyes where punctures become reticulate; interspaces shining. Ventrally, head with long setae, much longer than elsewhere on underside of body; large shallow cavity on each side produced by expansion of genae (for accommodation of antennae). Pronotum. More elongate in males than in female seen, ratio of length to breadth 13, 13, 14:10 (males), 12:10 (female); puncturation dense, reticulate except along mid-line and medially before raised region where there are a few punctures more widely separated (although interspaces shining overall impression dull) basal two thirds of longitudinal mid-line slightly raised to form a weak ridge, rest of disc broadly depressed on each side of mid-line, depressions deepest towards base; anterior margin slightly raised, most obviously so at sides; lateral teeth moderately developed, anterior tooth more prominent than others, which are obtuse (Fig. 28, 32–33). Elytra. Elongate, ratio of length to breadth, female 20:10, male 21, 22, 22:10; disc convex; interstriae 3, 5 and 7 raised, 3 raised slightly on basal two thirds, others obviously raised for greater part of length; 9 forms margin of declivity, somewhat carinate; setae arranged in herringbone pattern although not very obviously so; apex slightly curved in to suture. Legs. Male metafemora with a strong tooth on inner margin (Fig. 31); tarsi simple (third tarsomere not produced beneath fourth). Abdomen. First ventrite with femoral line very short (Fig. 30). Male genitalia (Fig. 34–38). Internal sac with teeth arranged in the form of an armature (Fig. 37); median strut gradually broadened to apex; area towards ostium with about 22 rods on each side; parameres long, 4 or 5 long setae at apex, shorter setae along outer margin of apical half, much shorter finer setae along inner margin; median lobe with fine short setae on dorsal surface, apex pointed; sternites 8 and 9 (Fig. 38), sternite 8 with several short fine setae towards each side. Material examined. Holotype female “Rep. Arg. Chaco Sant [green label, Grouvelle’s handwriting] / Type [orange printed label] / Museum Paris 1917 Coll. Grouvelle [recent Paris Mus. label] / Anausibius Wagneri ty. Grouv. [Grouvelle’s handwriting, see Discussion above]” (MNHN). Other material. (3 total) 1 male “Bańado Tucam. Weiser / Col. C. BRUCH / Mus. Arg. Cs. Nat. ” (dissected, MACN); 1 male “ La Cienega (Belén) Catamarca I. 1926 Weiser Wolters leg. / Col. C. BRUCH / Mus. Arg.Cs. Nat. ” (dissected, MACN); 1 male with same data as previous specimen except date “ XII. 1925 ” (not dissected, MACN).Published as part of Halstead, David G. H., 2020, New and little known Coleoptera (Silvanidae: Silvaninae) from Central and South America, pp. 1-37 in Insecta Mundi 2020 (842) on pages 11-13, DOI: 10.5281/zenodo.535410
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