Unit 2: AOS 2: what influences a person's perception of the world?

what is a monocular depth cue?

when one eye accommodates for the depth and distance of an object

Whats monocular accommodation?

in order to fit a large, close-up object our eye lenses bulge, then flatten at an object in the distance

What are the pictorial depth cues?

relative size, height in visual field, linear perspective, interposition and texture gradient

what are the pictorial depth cues used for?

to make 2D things 3D

relative size

smaller objects are perceived as further away and larger objects are perceived as closer

Height in Visual Field

the closer the object is to the horizon line, the further away the object

Linear perspective

the convergence of parallel lines as they become distant

Interposition

blocking one object with another

Texture gradient

reduction of detail the further the object

what are the binocular depth cues?

convergence and retinal disparity

What is convergence?

when you focus on an object close to your face your eyes go inward

What is retinal disparity?

the brain merging the two eyes pictures into one

What are the gestalt principles?

proximity, similarity, figure-ground, and closure

what is proximity?

stimuli close together are seen as forming a group

what is similarity?

stimuli in similar shape, colour, or size are seen as forming a group

what is figure-ground?

the object contrasts with the background

what is closure?

we close in gaps in an object and see it as complete

What creates a perceptual set?

context, motivation, emotional state, previous experience, and culture

how does genetics impact taste perception?

genetic differences impact our sensitivity to chemical molecules in foods, we get given different amounts of taste buds

how does perceptual set impact taste perception?

a predisposition to taste something in a particular way

how does branding impact taste perception?

we tend to believe a food is better if it’s from a certain brand we like

the muller -Lyer illusion

arrowhead appears smaller than feathertail, even though they are of equal length

the ames room illusion

person seems to grow, when really they’re just getting closer to the viewer

how does perceptual set impact fallibility of taste perception?

our expectations can influence the way we perceive different flavours

how does texture impact fallibility of taste perception?

texture contributes to flavour, our expectation of texture contributes to our feeling of acceptance to the food

what is a within subject design?

participants are exposed to

limitation and advantage of within subject design?