Psy Chapter 3

Psy Chapter 3 - Overview The Process of Sensation Vision...

Info iconThis preview shows pages 1–10. Sign up to view the full content.

View Full Document Right Arrow Icon
Overview The Process of Sensation Vision Hearing Smell and Taste The Skin Senses The Spatial Orientation Senses Influences on Perception Principles of Perception Unusual Perceptual Experiences
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The ___Process_ of Sensation Sensation is the process through which the senses pick up __visual____, ____auditory___, and other sensory stimuli and transmit them to the brain. Perception is the process by which sensory information is actively _________ and interpreted by the ______.
Background image of page 2
Absolute Threshold What is the ____dimmest___ light this lifeguard could perceive in the darkness? Absolute threshold measures have been __est.______ by sensory psychology. Just as a threshold of a doorway is the dividing point between being outside or inside a room, the __absolute ____ ____threshold____of a sense marks the difference between not being able to perceive a stimulus and being _just ___ _barely_____able to perceive it.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
__Absolute_______ _____Threshold_ The minimum amount of sensory stimulation that can be detected 50% of the time Insert figure 3.1 pp 75 Difference Threshold the smallest increase or decrease required to produce a difference in sensation that is noticeable _50%_of the time.
Background image of page 4
__jUST__ __noticable___ ___Difference___(JND) The smallest increase or decrease in a physical stimulus that is required to produce the “____ ________ ____________(JND).” The JND is the smallest change in sensation that a person is able to detect 50% of the time. Which one weighs more? Weber’s Law states the JND is based on a percentage or proportion of stimulus change rather than a fixed amount of change A weight must increase or decrease by 1/50 th or 2% for JND 2 lbs difference needed in 100 lb weight a tone must be .33% higher or lower only applies to _average_ sensitivities and stimuli not too strong or weak
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Sensory Receptors Highly _Specialized_ cells in the sense organs ___detect___ and ____respond______to one type of sensory stimuli converts the stimuli into nerve impulses (neural) __Transduction____ The process through which sensory receptors convert the sensory stimulation into electrochemical neural impulses Sensory Adaptation The process in which sensory receptors grow accustomed to constant, unchanging levels of stimuli over time Smokers grow accustomed to smell of cigarettes
Background image of page 6
Vision The most studied sense __Visible__ __Spectrum___ the band of electromagnetic waves visible to the human eye. Wavelength – the distance from the peak of a light wave to the peak of the next _wave_.
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The Eye Cornea Tough, transparent, protective layer Covers _front_ of eye Bends light rays inward through the pupil _Lens__ Transparent disk-shaped structure behind the iris & pupil Changes shape as focusing on objects Retina Contains visual sensory receptors
Background image of page 8
The Eye Rods Light sensitive receptor cells in the retina Looks like slender
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 10
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 33

Psy Chapter 3 - Overview The Process of Sensation Vision...

This preview shows document pages 1 - 10. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online