the rating system of the brain

zu zweit, 2011

the photo is called „zu zweit“ and i took it on a hot day in summer of 2010 on the greek island of kefalonia.

the rating system of the brain

I have already explained a few basics concerning stress, emotional life and controlling the switch of consciousnees in blog 6, 9, 12 and 13.

all signals from our surroundings are administered in the cortex and the limbic system through our five senses (blog 10 and 12) and rated within 500 milliseconds. an inner picture of the world is generated and immediately compared with good or painful previous experiences. the biological axis of stress is immediately deployed if the situation is comparable to a negative previous experience followed by anxiety. interestingly, thoughts and the imagination of a dangerous situation in the future can already activate the axis of stress, which is very important for our struggle for survival (anticipation). 

these ratings happen in the “center for emotional intelligence” (limbic system), primarily in the amygdale, in the hippocampus and in the hypothalamus.

the hypothalamus, an important control structure in the limbic system, controls hormonal, immunological and emotional functions and is also responsible for sleep.

there are three types of responses to stress:

1. through the sympathetic nervous system

2. through the endoctrinal (hormonal) system

3. through the immune system 

ad 1: general mobilization

production of crh (cortico-releasing-hormone) in the hypothalamus and in the amygdale with stimulation of the locus coeruleus and therefore release of noradrenaline in the brain (see blog 12 – switch of consciousness). this leads to increased attention and motivation.

at the same time, crh stimulates the adrenal medulla through the sympathetic nervous system to release adrenaline and noradrenaline. this stimulates the cardiovascular system and stress symptoms in the brain as well as inflammatory reactions start increasing.

ad 2: the crh produced in the amygdale and the hypothalamus stimulate the pituitary to produce acth (adrenocorticotropic hormone), which stimulates the adrenal cortex to release cortisol. this is how energy is provided. however, cortisol is also a strong immune regulator and anti-inflammatory.

a strong production of cortisol restrains production of crh and acth, which gives vital protection and should prevent stress reactions from getting out of control. constant psychological stress destroys this protection after some time, leading to grave somatic consequences.

ad 3: cortisol blocks the production of cytokines (hormone-like messengers that are part of the unspecific defense), like interleukin 1 and 8 as well as the tumor necrosis factor. sensibility to infection increases, wound healing is slowing and the course of disease in general is influenced negatively.

coronary heart diseases, tumors, asthma, diabetes, skin diseases, the common cold and herpes infections up to multiple sclerosis and the course of many other diseases are negatively influenced or even caused by this.

good stress managament can make these symptoms go away, slowed down by negative feedback mechanisms. the prefrontal and orbitofronal cortex (cognitive centers of rationality) thus dampen the emotional limbic centers with the message: “dont worry, it's not the end of the world”.

if only the amygdale, which reacts even stronger to stress, would listen and play along!

night gardens

brenscino 5, 2014

in the garden of the hotel brenscino in brissago

on the hillside atop of brissago lies the parkhotel brenscino, where guests are indulged with a wonderful view of lake maggiore and a huge garden.

the garden is a gem, created and looked after with much love and expertise, an eldorado for experiencing a rich biodiversity.

during two visits in the past four years, i took the opportunity to expand my night garden series. equipped with an led-flashlight, i indefatigably strolled through the garden after nightfall. i felt and enjoyed the comforting breeze of the night, heard a rustle here and a chirp there, the garden lit by a magically beautiful sky full of stars. i often moved the camera to create blurred images that would depict the scenery even better.

the difficult lighting conditions of the night are a challenge for every camera, since poor lighting inevitably leads to speckling at a certain film speed (iso). speckling on a photograph that was taken with a digital camera is a disturbance of pixels (elements sensitive to light) in brightness and color. this kind of “coarseness” of the image is not comparable to the “grain” on analog high speed film.

the bigger a sensor of a camera is, the less speckling will be visible, because the size of each pixel as well as the gap between the pixels increase with the size of the sensor. while smaller sensors already show speckling at iso 800, this does not happen with larger sensors until iso 3200 or even iso 6400. it is therefore important to pay attention to the size of a sensor when buying a camera, depending on the individual’s demands and expectations in picture quality.

speckling can, however, also be used intentionally. in certain situations, i personally appreciate the additional effect of blurriness and the thus achieved intensification of a mystical appearance of the photograph.

add the moon to this scenery and you feel as if you were in a midsummer night's dream.

the exposition shows selected photographs from the past four years and is open until july 17, 2014. a portfolio containing the night garden images is also available.

stress

moonrise over rapperswil, 2008

the photo is called “moonrise over rapperswil” and was taken on a warm summer's evening.

stress

the word stress is on everyone’s lips, but also in every brain, body and heart. even the world health organization calls it the largest health threat of the 21^st century.

stress researcher hans selye described stress as a response and adjustment reaction of the body via the brain to an emotional or physical imbalance.

how many times have we longed for a break, but ignored our needs and kept on working instead of taking a rest? this leads to a release of stress hormones that help us to suppress symptoms of the exhaustion setting in, we can even increase our performance for a short time – we are “high” on hormones. we often stimulate our system with pick-me-ups like caffeine, nicotine or alcohol. however, after some time, dysfunctions such as reduced brain performance and reduced learning ability with higher error rates or general inefficiency set in.  the body gradually starts to rebel and various psychosomatic disease patterns appear.

every occurrence of stress leads to a stress reaction, which leads to a depressed mood on an emotional level, to signs of exhaustion on a physiological-hormonal level and for instance to lack of concentration on a cognitive level. heavy stress results in a blockade, we are jumpy, grow stiff and find it difficult to think. test anxiety ,for example, makes everything that one has studied for disappear. 

we either manage to overcome stress or stress overcomes us, while the latter – as constant psychological stress – can lead to serious secondary diseases.

until now, i have talked about stress in connection with overwork. i am convinced that signs of overwork (burnout) and the correspondent sequelae are mainly of other origin.

constant psychological stress should rather be called “relationship stress”, it is man in relation to himself and his environment, with all tasks raining in on him as well as challenges and harm (traumata).

constant psychological stress occurs when strains seem impossible to overcome from a subjective point of view, when one’s own social position and identity are about to be redefined or – and this is very important – after experiencing traumata.

psychobiology knows two types of stress, distress and eustress.

distress is known as the negative, threatening and morbid type, while eustress embodies the positive and challenging and is important for our motivation of being and creativity.

by the way, too little stress is just as harmful as is too much stress.

psychobiological healing can only be achieved by reducing stress, not only by reducing one’s work load for example, but mainly by general reduction or elimination of the often underlying and subconsciously operating causative traumata.

why do people react differently to the same stressful occurrence? stress tolerance apparently increases through experience of stress and expectation of stress or if i can see a (divine) “sense” in the event that traumatized me, i.e. after a natural disaster.

recognizing stress factors at an early stage and immediately eliminating them as well as accepting challenges that make us happy keeps us healthy and content. this is best achieved through the positive experience of mastering a challenge.