Pictorial Misrepresentation of Spatial Relations of the Face by Certain Chronic Alcoholic Men: An Interpretation Implicating Spatial Aspects of Memory

1983 ◽  
Vol 57 (3) ◽  
pp. 895-910 ◽  
Author(s):  
Anneliese A. Pontius

Specific deficit in the pictorial (and implied mental) representation of subtle spatial relations of the upper part of the pattern of the human face is demonstrated in 22% of 344 chronic alcoholic skid row men as against 12% of 406 controls, based on protocols for a novel Draw-A-Person-With-The-Face-In-Frontal-View Test This drawing was previously shown to be sensitive to the detection of ability to represent visually subtle yet elementary spatial relations. A speculative interpretation of the present data and of mnemonic techniques described in the literature suggests that accurate mental representation of these spatial relations may be required particularly during the encoding phase of memory processes which appears to be especially inefficient for those with chronic alcoholism. Aside from the brain systems of the frontal and occipital-parietal lobes, the hippocampal mediation of elementary spatial relations particularly may be implicated.

2005 ◽  
Vol 16 (3) ◽  
pp. 184-189 ◽  
Author(s):  
Marie L. Smith ◽  
Garrison W. Cottrell ◽  
FrédéAric Gosselin ◽  
Philippe G. Schyns

This article examines the human face as a transmitter of expression signals and the brain as a decoder of these expression signals. If the face has evolved to optimize transmission of such signals, the basic facial expressions should have minimal overlap in their information. If the brain has evolved to optimize categorization of expressions, it should be efficient with the information available from the transmitter for the task. In this article, we characterize the information underlying the recognition of the six basic facial expression signals and evaluate how efficiently each expression is decoded by the underlying brain structures.


1984 ◽  
Vol 58 (1) ◽  
pp. 143-148 ◽  
Author(s):  
Anneliese A. Pontius

A new model posits that there are specific patterns of groupings of several delayed human cognitive functions or dysfunctions in certain ecological circumstances which characterize a significant portion of a cultural group. It is further posited that such patterns (“ecological syndromes”) are primarily based on as yet unknown neurophysiological givens. This deduction is based on the occurrence of several specific groupings of delayed cognitive functions or dysfunctions that have been identified in diverse time periods and cultural groups where no brain pathology can reasonably be expected. The “ecological syndromes” were, however, noted to be analogous to those found in neuropathology. The main factor contributing to such an “ecological syndrome” appears to be a specifically limited under-use of certain functions not needed for the survival of certain populations without implying any general cultural deprivation. Some examples of “ecological syndromes” are mentioned: low arithmetic skills linked with quantitatively inaccurate pictorial (and implied mental) representation of fingers, low literacy skills linked with specifically inaccurate pictorial (and implied mental) representation of the subtle spatial relations of the configuration of the human face, and an “ecological apractognosia” observed among wigmen of New Guinea.


1983 ◽  
Vol 57 (2) ◽  
pp. 659-666 ◽  
Author(s):  
Anneliese A. Pontius

A specific link is found between low of absent literacy skills and a specific misrepresentation of spatial relations exclusively of the upper part of the human face. This misrepresentation, determined by simple measurement, is found in 32% of the pictorial representations of 407 preschoolers whose drawings were published by various authors as well as in 32% of 44 preschoolers tested here. By contrast, after having had instruction in literacy, the proportion of such misrepresentations of the face drops to 7.5% and 10%, respectively, although, as expected, not in the drawings by 236 mildly mentally retarded or by 297 dyslexic children, 33% and 39% of whom, respectively, still misrepresent the face. In addition to a developmental factor, a further one, as yet undetermined, may be at work and related to a specific deficit in representing the spatial relations of the face. Data further support the previously suggested existence of a specific and general trend for a link between literacy skills and accurate representation of the spatial relations of the pattern of the face also noted previously in diverse cultural groups and periods.


2010 ◽  
Vol 24 (4) ◽  
pp. 249-252 ◽  
Author(s):  
Márk Molnár ◽  
Roland Boha ◽  
Balázs Czigler ◽  
Zsófia Anna Gaál

This review surveys relevant and recent data of the pertinent literature regarding the acute effect of alcohol on various kinds of memory processes with special emphasis on working memory. The characteristics of different types of long-term memory (LTM) and short-term memory (STM) processes are summarized with an attempt to relate these to various structures in the brain. LTM is typically impaired by chronic alcohol intake but according to some data a single dose of ethanol may have long lasting effects if administered at a critically important age. The most commonly seen deleterious acute effect of alcohol to STM appears following large doses of ethanol in conditions of “binge drinking” causing the “blackout” phenomenon. However, with the application of various techniques and well-structured behavioral paradigms it is possible to detect, albeit occasionally, subtle changes of cognitive processes even as a result of a low dose of alcohol. These data may be important for the consideration of legal consequences of low-dose ethanol intake in conditions such as driving, etc.


1984 ◽  
Vol 29 (7) ◽  
pp. 567-568
Author(s):  
Gilles Kirouac
Keyword(s):  
The Face ◽  

2020 ◽  
Vol 2020 (11) ◽  
pp. 267-1-267-8
Author(s):  
Mitchell J.P. van Zuijlen ◽  
Sylvia C. Pont ◽  
Maarten W.A. Wijntjes

The human face is a popular motif in art and depictions of faces can be found throughout history in nearly every culture. Artists have mastered the depiction of faces after employing careful experimentation using the relatively limited means of paints and oils. Many of the results of these experimentations are now available to the scientific domain due to the digitization of large art collections. In this paper we study the depiction of the face throughout history. We used an automated facial detection network to detect a set of 11,659 faces in 15,534 predominately western artworks, from 6 international, digitized art galleries. We analyzed the pose and color of these faces and related those to changes over time and gender differences. We find a number of previously known conventions, such as the convention of depicting the left cheek for females and vice versa for males, as well as unknown conventions, such as the convention of females to be depicted looking slightly down. Our set of faces will be released to the scientific community for further study.


Author(s):  
Reshma P ◽  
Muneer VK ◽  
Muhammed Ilyas P

Face recognition is a challenging task for the researches. It is very useful for personal verification and recognition and also it is very difficult to implement due to all different situation that a human face can be found. This system makes use of the face recognition approach for the computerized attendance marking of students or employees in the room environment without lectures intervention or the employee. This system is very efficient and requires very less maintenance compared to the traditional methods. Among existing methods PCA is the most efficient technique. In this project Holistic based approach is adapted. The system is implemented using MATLAB and provides high accuracy.


2020 ◽  
Vol 10 (3-4) ◽  
pp. 158-165
Author(s):  
Yalini Thivaharan ◽  
Indira Deepthi Gamage Kitulwatte

Introduction: Investigation into explosions is one of the major areas in forensic medicine and pathology. Medico legal issues associated with these deaths are diverse and forensic experts are often expected to make clarifications. Assistance of a methodical scientific investigation of such a death in evaluation of unanswered medico legal issues, of an autopsy of one of the victims of Easter Sunday explosions is discussed. Case history: The deceased was a 15-year-old girl who was participating in the Easter mass at St. Sebastian’s Church - Kattuwapaitya, Negombo, Sri Lanka when a suicide bomber blew himself up. The mother of the deceased noticed the deceased being rushed to the hospital. However, she was pronounced dead on admission. Pre-autopsy radiology revealed spherical shrapnel in the temporal region. At autopsy, the fatal injury was found on the head and a detailed study revealed skull fractures associated with penetration by 3 shrapnels. There was a keyhole lesion among the penetrations. Internal examination revealed an extensive dural tear underlying the compound fracture. The brain was grossly edematous with lacerations on the frontal and parietal lobes associated with localized subarachnoid hemorrhage. There were multiple underlying contusions on bilateral frontal white matter. Small subarachnoid haemorrhage was noted on the basal aspect of the brain. Discussion: Careful evaluation of the autopsy findings assisted in formulating the opinion scientifically on event reconstruction including the proximity of the victim to the epicenter of explosion and nature of explosive device, period of survival, mechanism of causation of skull fractures and the mechanism of death in addition to the cause of death. Conclusion: A forensic pathologist following a meticulous autopsy examination, along with a team of ballistic experts and specially trained police personnel play a pivotal task in analyzing a scene of explosion and an autopsy of a victim, in concluding the case and in bringing justice to all the victims and survivors of the catastrophe.


2012 ◽  
Vol 2012 ◽  
pp. 1-12 ◽  
Author(s):  
Giulio Tononi ◽  
Chiara Cirelli

Sleep must serve an essential, universal function, one that offsets the risk of being disconnected from the environment. The synaptic homeostasis hypothesis (SHY) is an attempt to identify this essential function. Its core claim is that sleep is needed to reestablish synaptic homeostasis, which is challenged by the remarkable plasticity of the brain. In other words, sleep is “the price we pay for plasticity.” In this issue, M. G. Frank reviewed several aspects of the hypothesis and raised several issues. The comments below provide a brief summary of the motivations underlying SHY and clarify that SHY is a hypothesis not about specific mechanisms, but about a universal, essential function of sleep. This function is the preservation of synaptic homeostasis in the face of a systematic bias toward a net increase in synaptic strength—a challenge that is posed by learning during adult wake, and by massive synaptogenesis during development.


Author(s):  
Clairton Marcolongo Pereira ◽  
Tayná B. Silva ◽  
Laiz Zaché Roque ◽  
Bárbara Barros ◽  
Luiz Alexandre Moscon ◽  
...  
Keyword(s):  
The Face ◽  

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