AHH seminar: Focused vs. shared attention in multi-tasking
Speaker: Ervin Hafter
Date: Thursday 23 March
Time: 10.00am -11.30am
Location: Australian Hearing Hub, Level 1, Lecture Theatre
10.00am – 10.05am – Welcome
10.05am – 10.45am – Presentation
10.45am – 11.00am – Q & A
11.00am – 11.30am – Networking & Refreshments
Abstract: Reduced performance found when we have to do two things at the same time is often blamed on informational overload, that is, on the need to share a limited attentional resource. Results to be shown here are from two quite different conditions that reflect the problem, describing: (1) responses to the levels of simple auditory and visual stimuli presented in a psychophysical dual task, (2) speech reception in a simulated cocktail party (albeit, w/o booze) where two talkers tell different stories with the variable cadence of natural speech. In both conditions, we examine differences in situations where there is a cost of shared attention (serial processing) and where there is not (parallel processing). Without promising closure on this ancient question, I will try to make a convincing argument saying that the cost of shared attention in both tasks depended upon a single distinction, the memories to which target stimuli were compared.
Spatial hearing including: interactions between interaural time & intensity; binaural detection (MLDs) and perceived signal location; space coding spatial sensitivity in inferior colliculus; interaural timing in high-frequency envelopes; rate-related binaural & monaural adaptation; restarting binaural processing; cross-correlational modeling; auditory scene; importance of stimulus onsets; temporal weighting.
Cognitive effects including:Signal uncertainty; role of bandwidth; cuing and focused attention; shared attention and the cost of attention.
Hearing Impairment including: Precedence in patients with cochlear implants; cognitive in noise reduction; separate rules for phonetics and semantics in noisy environments; naturalistic environments for study of attention.
1958 B.S. Psychology, Purdue Univ., W.Lafayette, Indiana
1959 Animal Behavior, R.B.Jackson Lab., Bar Harbor, Maine
1964 PhD, Psychology, Univ of Texas), Austin, TX, (w/L.A.Jeffress)
1966 Res. Sci. Aud. Perception/Signal detection, Tracor Corp., Austin, TX
2002 Prof. Emeritus, Psychology, UC Berkeley
Pres. Prof. of the Graduate School, UC Berkeley
Who should come: hearing, speech and language researchers and clinicians, cognitive scientists, psychologists, researchers in aging health and health care professionals.
Network: Learn from one another and see what collaboration opportunities are available.
Registration: Entry is free and open to the public. Please register by Monday 20 March 2017 to firstname.lastname@example.org