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16 Cards in this Set
- Front
- Back
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discuss anatomic and physiologic components of the sensory perception process
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involves 2 components reception and perceptionreception=process of receiving stimuli or data
they ae either external or internal to the body sensory perception=involves the consious organization and translation of the data or stimuli into meainingful information |
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what are external stimuli
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visual, auditory, olfactory, tactile, and gustatory
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what are internal stimuli
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gustatiry can be internal also, othr types are kinestheitic or visceral
kinestetic=refers to the awareness of the position and movement of body parts ie a person that is walking is aware that of which leg is forward |
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what is stereognosis
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the ability to percieve and understand and object through touch by its size, shape and texture
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For an individual to to be aware of his surroundings four aspects of the sensory proces must be present
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Stimuli=
Receptor= impulse conduction= Perception= |
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what is sensory deprivation and some symptoms
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a decrease in or lack of meaninful stimuli
Signs *yawning 8decreased attentin span *imparied memory *periodic disorientation *hallucinations/delusion *crying, depression over small matters *apathy, emotional lability |
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What is RAS
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for the person to receive and interpret stimuli the brain mut be alert, the Reticular Activating System in the brain stem is thought to mediate the arousal mechanism
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What are the 2 componets of RAS
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1. REA=Reticular Excitatory Area and RIA=Reticular Inhibitory Area the Rea is responsible for stimulus arousal and awareness
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What is sensoritasis
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term used to describe when a person is in optimal arousal
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What is sensory overload and signs.
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generally occurs when people is unable to process or mange the amount or intesisty of sensory stimuli
Signs complaints of fatigue irritability, anxiety, restlessness periodic or general disorientation increasedmuscle tension scattered attention and racing thoughts |
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What factors contribute to sensory overlaod
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1 pain, dyspnea, anxiety
2 noisy helath care setting, intrusive diagnositc studies, contacts with strangers 3 inablikty to disregard stimuli selectively, as a result of nercous system disturbances or medications that stimulate the arousal mechanism |
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what is sensory Deficit
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impaired reception, perception or both of one or more of the senses, ie blindness or deafness
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What are factors affecting sensory function
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1 Developmental stage
2 Culture 3 Stress 4 Medication and illness 5 Lifestyle and Personality |
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Differentiate the componets of stress as stimulus
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Stimulus based=a stimulus, life event, or set of circumstances that arouse physiologic or psychologic reactions that may incress the individulas vulnerability to illness
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what is a response base model of stress
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Selye=the nonspecific response for the body to any kin, with subsequent changes in the structure and chemicals of body d of demand made upon it. he developed th GAS general aspation syndrome=occurs with the release of certian adaptive hormones
Schafer=arousal of mind and body in response to demands made upon it |
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describe the 3 stages of of the GAS and LAS
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alar reaction=initial reaction, it alerts the bodies defenses has 2 phases, shock and countershock
shock=fight or flight countershock=opposite or reverse of shock |
