compound eye
compound eye The eye of insects and crustaceans, which consists of numerous visual units, the
ommatidia. Each ommatidium consists of an outer cuticle covering a lens, beneath which are 6–8 retinal cells surrounding a light-sensitive
rhabdom. Adjacent ommatidia are separated by pigment cells. The eye is convex, with nerve fibres from the retinal cells converging onto the optic nerve. There are two types of compound eye. In
apposition eyes, typical of diurnal insects, each ommatidium focuses rays parallel to its long axis so that each gives an image of a minute part of the visual field, producing a detailed mosaic image. In
superposition eyes, typical of nocturnal insects, the pigment separating ommatidia migrates to the ends of the cells, so that each ommatidium receives light from a larger part of the visual field and the image may overlap with those received by many neighbouring ommatidia. This produces an image that is bright but lacks sharpness of detail.
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Hysteria Beyond Freud.
Magazine article from: American Scientist; 5/1/1995; ; 700+ words
; ...language used by the medical establishment. Hysteria Beyond Freud is in this latest model and five separate essays seek to deal with hysteria apart from its psycho-analytic connection...believe that "in the popular imagination hysteria begins and virtually ends with Freud...
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Approaching Hysteria: Disease and Its Interpretations.
Magazine article from: Canadian Journal of History; 8/1/1995; ; 700+ words
; ...generated as much scholarly interest as hysteria. At first glance it is not easy to...In fact, some physicians argue that hysteria, like smallpox, has disappeared. Some scholars insist that hysteria was simply a diagnostic label that was...
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Disguised hysteria in a child psychosis?
Magazine article from: American Journal of Psychotherapy; 1/1/1998; ; 700+ words
; ...whether the psychosis was not just a disguise of hysteria. At the present time hysteria is rarely given as diagnosis for a mental disorder...3 and its respective interpretations cause hysteria to disappear? Or was it the psychoanalytic sexual...
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Books: Male hysteria from Don Juan to Loaded Lad Hysteria, once explained by theories of vapours and wandering wombs, can shed light on war crimes, homophobia and the postmodern condition.
Newspaper article from: The Independent - London; 4/23/2000; ; 700+ words
; ...ALLEN LANE pounds 18.99 A touch of hysteria can make you a real hit with the ladies...Take Robert Connolly, treated for hysteria in 1876. He suffered from an unfortunate...1997 book Hystories as an example of how hysteria is a response to a situation that is...
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Ill but manly: male hysteria in late nineteenth-century medical discourse.
Magazine article from: Nineteenth-Century Prose; 3/22/1998; ; 700+ words
; ...contests the accepted view that male hysteria has always been an illness that feminizes...befalls only feminine men. Nonetheless, hysteria is always a gendered construct. Focusing...Martin Charcot, Kavka argues that male hysteria as a discursive construct reinforced...
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Impotence and Excess: Male Hysteria and Androgyny in Flaubert's Salammbo.(Critical Essay)
Magazine article from: Nineteenth-Century French Studies; 9/22/2000; ; 700+ words
; ...current, interdisciplinary studies on hysteria much attention has been given to the...have explored how the circulation of the hysteria concept in diverse discursive fields...often ignored but puzzling concept of hysteria as a male malady. Mark S. Micale...
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The Decline of Hysteria.
Newspaper article from: Harvard Mental Health Letter; 7/1/2000; ; 700+ words
; The case of hysteria is one of the most mysterious examples...the beginning of the present century, hysteria began to disappear from medical textbooks...years ago. Physicians today regard hysteria in its florid form, with convulsions...
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A New Hystery: History and Hysteria in Toni Morrison's Beloved.(Critical Essay)
Magazine article from: Twentieth Century Literature; 3/22/2001; ; 700+ words
; ...employing French feminist ideas about hysteria, I will argue that Beloved explores...repossession of the past, I propose that, like hysteria, Morrison's novel highlights the importance...Freudian and French feminist theories of hysteria in significant ways. In Studies on Hysteria...
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Books: The forgotten malady lingers on `Hysteria' used to afflict silly women. When men suffered too, it vanished. Now the illness has returned, says Darian Leader
Newspaper article from: The Independent - London; 5/27/2000; ; 700+ words
; ...s new book is about one of them, the hysteria that was once the darling of Freud and...fits and swellings that helped to give hysteria its reputation as both theatre and a...literature, most commentators agree that hysteria has in fact taken new forms, ranging...
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Probing Pictures: Carol Armstrong on Georges Didi-Huberman.(Invention of Hysteria: Charcot and the Photographic Iconography of the Salpetriere)(Book Review)
Magazine article from: Artforum International; 9/1/2003; ; 700+ words
; Invention of Hysteria: Charcot and the Photographic Iconography...as I set about reading Invention of Hysteria: Charcot and the Photographic Iconography...look more at length at Invention of Hysteria as a book about photography as much...
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Hysteria
Dictionary entry from: International Dictionary of Psychoanalysis
HYSTERIA Hysteria refers both to a personality type and to a cluster of psychoneurotic...uterus, and was historically considered a female disorder. Writings on hysteria date to ancient Egypt and the Kahun papyrus (ca.1900 BCE), which...
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hysteria
Book article from: The Oxford Companion to the Body
hysteria Since the rise of the so-called...x2019; early in the twentieth century, hysteria has been regarded as a psychological malady...The modern English word ‘hysteria’ derives from the Greek...
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Studies on Hysteria
Dictionary entry from: International Dictionary of Psychoanalysis
STUDIES ON HYSTERIA Beginning in 1892, Sigmund Freud gradually...preface and final chapter of Studies on Hysteria — during a period when he was...last chapter, "The Psychotherapy of Hysteria." In it he describes the overdetermination...
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"Fragment of an Analysis of a Case of Hysteria" (Dora/Ida Bauer)
Dictionary entry from: International Dictionary of Psychoanalysis
...FRAGMENT OF AN ANALYSIS OF A CASE OF HYSTERIA" (DORA/IDA BAUER) Freud's case...of the structure and the genesis of a hysteria." Other critics have described the case as a canonical specimen of conversion hysteria, as Freud's most graphic demonstration...
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mass hysteria
Book article from: A Dictionary of Sociology
mass hysteria A psycho-social phenomenon whereby people in large groups behave in a similar and often emotional manner. Often used (somewhat...
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