Using an example, describe the three stages in the three-stage model of object perception and explain how this model helps us understand two different types of agnosia PDF

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introduction to delusions and disorders practise assessment (tutorial work) with the question ;Using an example, describe the three stages in the three-stage model of object perception and explain how this model helps us understand two different types of agnosia'...

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Us i nga ne x a mpl e , de s c r i bet het hr e es t a g e si nt het hr e e s t a g emo de lo fo bj e c tpe r c e pt i o n a nde x pl a i nho wt hi smo de lhe l psusunde r s t a ndt wodi ffe r e ntt ype so fa g no s i a Th et h r e e s t a g emo d e lo fo b j e c tpe r c e p t i o ni sac o g n i t i v emo d e lt h a td e mon s t r a t e s a p p e r c e p t i v ea n da s s o c i a t i v ea g n os i a . Th efir s ts t a g eo ft h et h r e es t a g emo de li st hea b i l i t yt oi d e n t i f yl o c a lf e a t u r e ss u c ha sl i ne s a n de dg e so fa nob j e c t . Ani n d i v i d ua lwi t ha s s o c i a t i v ea g n o s i awo u l dh a v et h ea bi l i t yt oi d e n t i f y t h el o c a lf e a t u r e so fa no b j e c t . Th es e c o n ds t a g eoft h et h r e es t a g emo d e li st h ea b i l i t yt oi de n t i f y s h a p er e pr e s e n t a t i o n ss u c ha sat r i a n g l eo ras q ua r e . Ani n d i v i d u a l wi t ha s s o c i a t i v ea g n o s i ah a s t h ea b i l i t yt oi d e n t i f ys h a p e s .Thet hi r ds t a g ei nt h et h r e es t a g emo d e li so b j e c tr e pr e s e n t a t i o n wh i c hi st h ea bi l i t yt oi de n t i f ywh o l eo b j e c t ss u c ha sd o g so rgu i t a r s . Ani n d i v i du a lwi t h a s s o c i a t i v ea g n os i ad o e sn o th a v et h ec a p a c i t yt oi d e n t i f ywh o l eob j e c t sa st h e r ei sa ni mp a i r me n t b e t we e nt h ev i s u a la n ds e ma n t i cs y s t e ms . Fo re x a mp l e , a ni n d i v i d u a lwi t ha s s o c i a t i v ea g n o s i a wo u l db ea b l et or e c o g ni s et h el i n e si nad r a wi n gofa ne y ea ndwo u l db ea b l et or e c o gn i s et he c i r c l e si nt h ed r a wi n go fa ne y e , b u two ul dn o tb ea b l et oi d e n t i f yt h ewh o l eo b j e c ta sa ne y e . Th et h r e es t a g emo d e lo fo b j e c tp e r c e p t i o nhe l p su su n d e r s t a n dt hec o g ni t i v ei mp a i r me n t wi t ha p p e r c e p t i v ea g n o s i a .I n d i v i du a l swi t ha p p e r c e p t i v ea g n o s i ad on o th a v ea ni mp a i r me n ti n t h efir s t s t a g ea n da r ea b l et oi d e n t i f yl o c a lf e a t u r e so fa no b j e c t . Th e r ei sa ni mp a i r me n twi t h s h a p er e pr e s e n t a t i o na si n d i v i d u a l swi t ha p p e r c e p t i v ea g no s i ah a v ed i ffic u l t yr e c o g ni s i n ga n d c o p y i n gs h a p e s .Ad e fic i ti nt h es e c o nds t a g eme a n st h e r ewi l lbea ni mp a i r me n twi t ho b j e c t r e pr e s e n t a t i o na sa ni n d i v i d u a lwo u l dn o th a v et hec a p a c i t yt or e c o g n i s eo b j e c t swi t h o u ti nt a c t s h a p er e pr e s e n t a t i o n . Th i sr e s p o n s ea v o i d sp r e v i o uswe a kne s s e st h r o u g hi de n t i f y i n gt h ec o r r e c tt y p e so fa g n o s i a . Th i sr e s p o n s eap r e v i o u swe a kn e s st hr o u g hi d e n t i f y i n ga l lo ft h ec or r e c ts t e p si nt h et hr e es t a g e mo d e lo fo b j e c tp e r c e p t i o nu s i n ga p p e r c e p t i v ea n da s s o c i a t i v ea g n o s i a ....