scholarly journals Developmental mechanism of psychiatric disorders: psychobehavioral impairments according to neurodevelopmental abnormalities

Author(s):  
Yukihiro Noda
2020 ◽  
Author(s):  
Lucy Vanes ◽  
Raymond J Dolan

Several decades of neuroimaging research in psychiatry have shed light on structural and functional neural abnormalities associated with individual psychiatric disorders. However, there is increasing evidence for substantial overlap in the patterns of neural dysfunction seen across disorders, suggesting that risk for psychiatric illness may be shared across diagnostic boundaries. In this narrative review, we first evaluate recent studies investigating the neural correlates of a general psychopathology factor, thought to reflect the shared variance across common mental health symptoms. We then link insights from this research to meta-analytic evidence for shared patterns of neural dysfunction across categorical psychiatric disorders. We conclude by providing an integrative account of vulnerability to mental illness that focuses on neurodevelopmental abnormalities in the context of brain connectivity.


2019 ◽  
Vol 42 ◽  
Author(s):  
Hanna M. van Loo ◽  
Jan-Willem Romeijn

AbstractNetwork models block reductionism about psychiatric disorders only if models are interpreted in a realist manner – that is, taken to represent “what psychiatric disorders really are.” A flexible and more instrumentalist view of models is needed to improve our understanding of the heterogeneity and multifactorial character of psychiatric disorders.


Crisis ◽  
1999 ◽  
Vol 20 (2) ◽  
pp. 64-70 ◽  
Author(s):  
Tamás Zonda

The author examined completed suicides occurring over a period of 25 years in a county of Hungary with a traditionally low (relatively speaking) suicide rate of 25.8. The rates are clearly higher in villages than in the towns. The male/female ratio was close to 4:1, among elderly though only 1.5:1. The high risk groups are the elderly, divorced, and widowed. Violent methods are chosen in 66.4% of the cases. The rates are particularly high in the period April-July. Prior communication of suicidal intention was revealed in 16.3% of all cases. Previous attempts had been undertaken by 17%, which in turn means that 83% of suicides were first attempts. In our material 10% the victims left suicide notes. Psychiatric disorders were present in 60.1% of the cases, and severe, multiple somatic illnesses (including malignomas) were present in 8.8%. The majority of the data resemble those found in the literature.


Crisis ◽  
2005 ◽  
Vol 26 (2) ◽  
pp. 73-77 ◽  
Author(s):  
Dinesh Bhugra

Abstract. Sati as an act of ritual suicide has been reported from the Indian subcontinent, especially among the Hindus, for several centuries. Although legally proscribed, these acts occur even now in modern India. The principle behind such acts has been put forward as the principle of good wife. There is little evidence to suggest that women who commit this act suffer from a formal mental illness. Cultural factors and gender role expectations play a significant role in the act and its consequences. Using recent examples, this paper illustrates the cultural factors, which may be seen as contributing to the act of suicide. Other factors embedded in the act also emphasize that not all suicides have underlying psychiatric disorders and clinicians must take social causation into account while preparing any prevention strategies.


1978 ◽  
Vol 23 (10) ◽  
pp. 777-777
Author(s):  
RICHARD F. THOMPSON

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