NeuroPsychiatry

2021-07-30 22:36:43 Open / Comment

2021-07-07 22:50:07 Open / Comment

2021-06-18 17:45:00 Open / Comment

2021-06-18 17:43:19 Open / Comment

2021-05-23 02:17:03 The locus coeruleus, which in Latin means "blue spot", is the principal site for brain synthesis of norepinephrine (noradrenalie).
The locus coeruleus and the areas of the body affected by the norepinephrine it produces are described collectively as the locus coeruleus-noradrenergic system or LC-NA system.

Norepinephrine may also be released directly into the blood from the adrenal medulla. Open / Comment

2021-05-23 01:29:51 Open / Comment

2021-05-22 07:52:08 Open / Comment

2021-05-18 07:54:00 Grasp reflex is considered a primitive reflex, similar to the suck, snout, and palmomental reflexes.

The reoccurrence of the grasp reflex past the age of infancy is associated with focal lesions in the central nervous system (CNS) or diffuse neurodegeneration, as observed in a broad range of neurodegenerative diseases.

Including Parkinson disease, progressive supranuclear palsy, corticobasal degeneration, dementia with Lewy bodies frontotemporal dementia, and normal pressure hydrocephalus,, prefrontal tumours. Open / Comment

2021-05-17 06:37:10 Primary process thinking is associated with the id and is childlike, dreamy, fantastical, and illogical. It is focused on immediate wish fulfillment and instant gratification.

Secondary process thinking is associated with the ego and is logical and more sophisticated. It is causal and consistent with real world thinking.

In secondary process thinking concern is focused on the environment and consequences rather than the satisfaction of only the self as in primary process thinking.

Differentiated between primary and secondary processes, of which the former relates to unconscious mental activity and the latter is associated with conscious thought. Open / Comment

2021-05-16 23:51:28 In Down syndrome :

The extra chromosome content can arise through several different ways.

The most common cause (about 92–95% of cases) is a complete extra copy of chromosome 21, resulting in trisomy 21.

In 1.0 to 2.5% of cases, some of the cells in the body are normal and others have trisomy 21, known as mosaic Down syndrome.

The other common mechanisms that can give rise to Down syndrome include: a Robertsonian translocation, isochromosome, or ring chromosome. These contain additional material from chromosome 21 and occur in about 2.5% of cases. Open / Comment