nsci 225 lc#2

• Patient DF damage: WHAT, temporal lobe, ventral, object perception, conscious
• Patient RV damage: WHERE/HOW, parietal lobe, dorsal, action, subconsious
• inverse projection problem examples?

  various viewpoints (angles) AND from diff perspectives (looks bigger/smaller)
• which Gestalt law tends to continue contours whenever the elements of the pattern establish an implied direction?

  law of good continuation

  
• which Gestalt law tends to continue contours whenever the elements of the pattern establish an implied direction?

  law of good continuation

  
• which Gestalt law states that forms with the most simplicity/symmetry/ease of remembrance are most easily understood; we tend see the interpretation of pic that makes the most sense to them based on logic?

  law of simplicity or pragnanz

  
• whats the other name for the Gestalt law of simplicity?

  pragnanz
• which Gestalt law tends to group objects with similar properties (color, shape, texture)?

  law of similarity

  
• which Gestalt law has objects that are positioned close to one another are often seen not as separate parts, but rather as one coherent whole?

  law of proximity

  
• which Gestalt law includes movement AND leads us to group together objects that move in the same direction?

  law of common fate
• which Gestalt law have elements that are within the same region of space being grouped together?

  principle of common region

  
• Gestalt Law pic example?

  1 - good continuation; 2 - similarity; 3 - proximity; 4 - common region

  
• the "What" pathway starts ventral, goes down, and ends in temporal lobe
• the "Where/How" pathway starts dorsal, goes up, and ends in parietal lobe
• can patient DF perform navigating obstacles task (unfamiliar environment with obstacles of different height)?

  yes
• can patient DF grasping size/shape (aka pick up a pencil)?

  yes
• can patient DF copy/draw objects?

  NO, she can draw from memory but cannot copy a drawing
• which environmental regularity has more horizontal/vertical lines in environment, light from above assumption, and assumption that an occluded object comes out the other side?

  physical regularity
• which environmental regularity considers the meaning of a scene, and schema (knowledge of what belongs in a scene)?

  semantic regularity
• To what types of stimuli does the FFA respond?

  recognizes faces; stimuli that ur an expert at
• which pathway is damaged if someone has a hard time with object discrimination?

  "what"
• which pathway is damaged if someone has a hard time with landmark discrimination?

  "where"
• PollEv: Corey looks at a flock of seagulls flying in one direction, when suddenly, 5 of the seagulls start flying in another direction. He now perceives 2 groups of birds, bc of the Gestalt principle of?

  common fate
• can patient DF do the match/posting task with cards in slot?

  yes (can't perceive the orientation of slot, can interact & put cards in slot)
• Dr. P can visually recognize object once what/where pathway is activated. he has?

  visual agnosia
• Which theory suggests the rules we use for object recognition are innate?

  gestalt principles
• complex cells care about?

  orientation, movement
• simple cells care about?

  orientation
• optic ataxia relates to the __ lobe?

  parietal
• visual agnosia relates to the ___ lobe?

  occipital
• which gestalt law states that visual events that occur at the same time will be perceived as going together?

  principle of synchrony
• which gestalt law says that a connected region of the same visual properties are perceived as a unit?

  principle of elemental connectedness

  
• which gestalt law says that things are more likely to form groups if the groups appear familiar or meaningful?

  law of familiarity

  
• what is an unconscious process in which occluded objects may get completed?

  amodal completion
• which depth cue is evident when there is more than one object and you can tell which are closer and further away?

  relative distance
• which depth cue tells you how far away from you an object is?

  absolute distance
• in relative size: As an object moves away from you, the size of the retinal image will ____?

  decrease
• which depth cue: As parallel lines head into the distance, they converge to meet at a vanishing point?

  Linear perspective
• which depth cue: Due to particles in the atmosphere, objects that are further away look less sharp and clear?

  atmospheric perspective
• which depth cue: As the texture gets further away, the separate parts of the gradient become smaller and less distinguishable?

  texture gradient