Radiation from the Fukushima Nuclear Plant disaster in Japan is now actively in the ecosystem all along the North American west coast… even the sea weed is now radiated.
This says that some stimuli are more likely to be feared than others eg. We have adapted to be fearful of these stimuli as potential threats rather than after an event has happened which gave our ancestors the best chance of survival and to pass on their genes.
A higher autonomic nervous system arousal was found in those who had a fear of snakes and spiders when they got shown the masked picture compared to when shown the full picture or compared to that of a participant without a fear of the particular animal.
This supports the idea that we have adapted to have a fear of a stimuli as a potential threat as participants were more scared when they were not sure of what the picture was than when they knew exactly what it was. This says that it may be that people inherit an over sensitive fear response to particular stimuli causing them to develop a phobia of that fear response.
If the MZ twins show a more similar fear response than DZ twins it suggests that there is in fact a genetic factor in Phobic Disorders whereas if it is in fact the other way round this suggests there is not a genetic factor. Family studies are more general and look at whether or not relatives within the same family have same of similar phobias.
This can be a criticism as both Nature and Nurture are said to be important to explaining Phobic disorders.A group of researchers in Boston reported in that phobic anxiety appears to be a risk factor for Parkinson's disease (PD) in males, although as of it is not known whether phobias cause PD or simply share an underlying biological cause.
The explanation is offered that the fearsome scenes used in the flicker task (snakes), where inappropriate due to their evolutionary significance. Stimuli for which there is no evolved biological predisposition to associate them with threat (e.g., guns) should be before we delve into those studies, it is important to discuss the information.
“free-floating anxiety” Phobic disorder Etiology of Anxiety Disorders Biological factors Figure Conditioning as an explanation for phobias.
Figure Cognitive factors in anxiety disorders. This preview has intentionally blurred sections. The charges present on a phospholipid molecule dictate it's orientation when placed in an aqueous solution.
Water makes up for ~% of the adult human body. It is present in all tissues, and is an important medium for which most biochemical processes occur. With this information in mind, we can discuss how phospholipids interact in water, and thus conclude how a phospholipid bilayer is formed.
Home > A Level and IB study tools > Psychology > Biological Preparedness Theory of Phobias. Biological Preparedness Theory of Phobias Biological explanations of phobic disorders AO! / 5. The behavioural approach to explaining phobias - Evaluation / 5.
Discuss two or more biological explanations of phobic disorders (8 + 16 marks. Development is the series of age-related changes that happen over the course of a life span. Several famous psychologists, including Sigmund Freud, Erik Erikson, Jean Piaget, and Lawrence Kohlberg, describe development as a series of stages.