Class Notes (836,135)
Canada (509,645)
Psychology (93)
PSYC 3325 (30)
John Usher (30)

Consciousness and Moral Reasoning.docx

3 Pages
Unlock Document

PSYC 3325
John Usher

Consciousness and Moral Reasoning ● Anderson – reported case of 2 individuals who suffered brain damage to prefrontal area of brain before they were 2 years old  had normal intellectual functioning but no moral or social reasoning ■ inability to recall social and moral knowledge ■ history of poor social and moral adjustment Selective Attention ● not conscious of all stimuli detected by our sense organs ● selective attention – process that controls our awareness of, and readiness to respond to, particular categories of stimuli or stimuli in a particular location ● sensory memory receives moreinformation than it can transfer into short-term memory ● Sperling – found that although people couldn't remember all letters he flashed, they could direct their attention to any of 3 lines and identify them with perfect accuracy ● process of selective attention determines which events we become conscious of ● attention may be controlled automatically (intense stimuli), instructions, or by demands of particular task we are performing ● attention to visual events in particular tends to act like spotlight that highlights events within some spatially contained area ● our attentional mechanisms serve to enhance our responsivness to certain stimuli and to tune out irrelevant information – determines what is stored in short term memory and long term memory ● storage of information in explicit memory dosen't require conscious attention ● Broadbent – brain mechanisms responsible for conscious processing of information have limited capacity so need some system to control flow of information Auditory Information ● Cherry – devised test of selective attention called dichotic listening  dichotic listening – task that requires person to listen to one of two different messages being presented simulataneously, one to each ear, through headphones  asked participants to shadow (continually repeat verbal material as soon as it is heard) message presented to one ear – ensured that they would pay attention to only that message  message that entered unattended ear appeared to be lost – participants recognized they had heard something but could not say what it was and didn't even notice if it was presented in foreign language ● suggest channel of sensory input can be turned off – perhaps neurons that detect sound from unattended ear are inhibited so they cannot respond to sound presented to that ear ● other evidence shows taht selective attention is not achieved by simply closing sensory channel – some information by its very nature can break through into consciousness (will remember hearing name, sexually explicit words) ● filtration must occur after sounds are identified as words ● McKay – showed information presented to unattended ear can influence verbal processing even when listener is not conscious of information  reported sentences related to what words that were presented to in unattended ear – sentences were not the same as onces actually heard; meaning was skewed in relation to what word was presented to unattended ear  participants did not recall hearing those words but obviously affected perception ● Sachs – shown people quickly forget particular words in sentences but remember meaning for much longer ● able to store information as it comes in ● Treisman – showed that people can follow message that is being shadowed even if it switches from one ear to another  even though unshadowed message cannot be remembered later, it produces some trace that can be retrieved if attention is directed to it soon after words are presented ● cocktail-party phenomenon – ability to sort out one voice from another and string together jumble of sounds into meaningful
More Less

Related notes for PSYC 3325

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.