| Term | Definition |
|---|
| The ability to process only the visual stimulus relevant for the current behavior-to a large extent--> blind to everything else | What is Attention? |
| Covert & Overt | What are the two main types of Attention? |
| Voluntary orienting | What is Covert Attention? |
| Automatic orienting, when there is a sudden change in an image, then you are suddenly paying attention to it, inhibition of return, fastest when the cue & the target are at the same place, slowest however when you wait 300 ms when the cue & target are at the same place | What is Overt Attention? |
| Parietal cortex (parietal cells respond mostly to the attended stimulus and barely to distracters | What structures are involved in Attention? |
| Lesion on the right side, not aware of their deficit, in severe cases neglect patients deny that the left part of their body belongs to them, subject won't correct for it, often specific to vision but sometimes extends to touch & other senses, IQ is perfectly fine, doesn't help if you tell them about their condition, most hemineglect patients do recognize their body parts | What is Hemineglect? |
| V1 lesion, aware of their deficit, can coach them to compensate & respond to their left side | What is Hemianopia? |
| Patient with Hemineglect | Who is Patient PP? |
| Attentional deficit or representational deficit (visual imagery deficit-prevents him from projecting the whole image in one's mind), it's probably a combination of both | What are some of the hypothesis for Hemineglect? |
| Somatosensory neglect, navigation neglect, denial of body parts | What is Multimodal Neglect? |
| Very good attentional abilities on the right side & they get worse and worse as they go further left | What is the Gradient Hypothesis (Hemineglect)? |
| Left hand is neglected when hands are in normal position, left hand is still neglected though less so when it is crossed with right hand | What is Trunk-and-Body-Centered Neglect (Somatosensory Neglect)? |
| Draw the black half/the white half, relative hemineglect is when patients neglect the part of the attended object the furthest to the left | What is Relative Neglect? |
| The left side of words is neglected regardless of the orientation of the words (backwards or upside down), neglect is left side of object not left side of space | What is Object-Centered Neglect for words? |
| Trunk Centered (all patients show), Body Centered (all patients show), Relative (all patients show), & Object Centered (a few patients show this) | What types of Neglect are there? |
| Balint Syndrome: Simultagnosia | What happens with a Bilateral Lesion? |
| Leads to a deficit called simultagnosia, where people can only pay attention to one thing at a time, next stage after hemineglect, have a lesion on the left side as well--both parietal lobes lesioned, can't pay attention to the right, parietal cortex does attention but it isn't the only one, very little neural resources to move attention around | What is Balint Syndrome? |
| Put cold water in their left ear & wait to minutes-they are back to normal-cured for 20 minutes, if you put hot water in their left ear, the deficit is even worse, warm water in the right ear--it gets better but there is spinning | What is Vestibular Recovery for Hemineglect? |
| Vestibular Recovery (cold water in the left ear), Prism Recovery, & Recovery due to lesions | What are the Treatments for Hemineglect? |
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