Orienting to a novel event is a rapid shift in attention to a change in one’s surroundings that appears to be a fundamental biological mechanism for survival and essentially functions as a “what is it” detector. Orienting appears to play a central role in human learning and development, as it facilitates adaptation to an ever-changing environment. Thus, orienting can be viewed as an allocational mechanism in which attention sifts through the complex multi-sensory world and selects relevant stimuli for further processing. The selection of stimuli for further processing has implications for what will be encoded into memories and how strong those memory traces will be. The ability to differentiate between relevant and irrelevant input, to inhibit the processing of irrelevant stimuli, and to sustain attention requires control, and inhibitory processes that improve with age.
Recent research indicates that one’s internal brain state prior to sensory input is directly related to subsequent processing of a stimuli. In particular, oscillatory brain activity in the alpha frequency band (8-14 Hz) is thought to play a role in attentional processes. A decrease in alpha frequency is associated with facilitation of attentional focus and further processing, whereas an increase in alpha frequency is associated with suppressing attention toward irrelevant stimuli. These findings have mostly been carried out in studies of adults, while much less is known about how these brain rhythms contribute to information processing in children.
This project involves analyzing data recorded from children and adults who performed orienting and memory tasks. The project will focus on the time-frequency domain, and will compare alpha modulation pre- and post- stimulus presentations. This project will provide students an opportunity to acquire skills in electrophysiological data analysis and learn about developmental differences in brain signals and its implication on cognition.
This is an UNPAID research project.
- Professor: Yael Cycowicz
- Department/School: Psychiatry
- Location: NYSPI Unit#21, 1051 Riverside
- Earliest starting date: 3/1/2020
- End date: 8/31/2020
- Number of hours per week of research expected during Spring 2020: ~12
- Number of hours per week of research expected during Summer 2020: ~40
- Skill sets: programming experience with MATLAB or python, background in signal processing and/or statistics
- Student eligibility:
freshman, sophomore, junior, senior, master’s
- International students on F1 or J1 visa: eligible