coggroup October 2015

coggroup@mx1.psych.mcgill.ca

1 participants
7 discussions

[Coggroup] Reminder of Cognitive Area Seminar: Anna Zamm "Neural correlates of endogenous rhythms"
by Esther Schott 30 Oct '15

30 Oct '15

Hi, Just a reminder of the talk today at 3:30pm (there will be pizza, too!), and the Happy Hour/Journal Blitz in Thomson House afterwards: (1) Reminder of the McGill Cognitive Area Seminar this week (2) Journal Blitz in Thomson House at 5pm on Friday (after the Cognitive Area Seminar) (1) This week, for the Cognitive Area Seminar in Psychology, we're happy to have Anna Zamm, graduate student in Caroline Palmer's Sequence Production Lab, give a talk: Friday, October 30th, 15h30-17h00 S3/4, Stewart Biology Building, 1205 Dr. Penfield Neural correlates of endogenous rhythms Anna Zamm Human behaviors are often rhythmic. From circadian sleep-wake cycles to solo music performance, many behaviors are characterized by endogenous rhythms: periodicities that occur in the absence of external stimuli. What neural mechanisms support endogenous timing. Evidence from electroencephalography (EEG) suggests that exogenous (externally paced) timing is supported by cortical oscillations that respond to frequencies of external stimuli. Here we investigate whether endogenous rhythms are characterized by cortical oscillations at the frequency of one's own behavior. We address this question in the context of self-paced music performance, a naturally rhythmic behavior in which humans show a wide range of endogenous frequencies. 40 skilled pianists completed a Solo piano performance task in which they continuously performed a melody at a comfortable rate while mobile EEG was recorded. Endogenous rhythms were assessed for each pianist in terms of performance rate (measured by number of tone onsets per second) during Solo performance. Cortical oscillations for each pianist were assessed by computing EEG power spectra across channels during Solo performance. To allow for cross-participant comparison of spectral power associated with performance rates, individual spectra were normalized relative to a fixed window surrounding each pianists endogenous frequency, corresponding to their Solo performance rates. Findings demonstrated a significant spectral peak at the frequency of endogenous rhythms across channels, with maximal power at fronto-central channels: The observed scalp distribution could not be accounted for by head movement or other motion artefacts. Thus, we provide the first evidence that production of endogenous rhythms is supported by increased power of cortical oscillations corresponding to the frequencies of each musician's performance. (2) After the talk, we will gather in Thomson House (3650 Rue McTavish) for the Journal Blitz; join us to tell us about an article you have read recently, hear about what others have read, and discuss (over drinks and nachos). The seminar and Journal Blitz is open to students, faculty, post-docs, and whoever else who is interested. Please forward this message to your students and other interested parties. Esther ------ Esther Schott Graduate Student, MIDC Department of Psychology McGill University http://www.psych.mcgill.ca/labs/midccdem/ ------ The schedule for upcoming talks in the Cognitive Area Seminar can be found: https://www.mcgill.ca/psychology/events-colloquia-0/brownbag-series If you would like to be added to the listserv for the Cognitive Area Seminar, please go to the link below and follow the instructions. http://mx0.psych.mcgill.ca/mailman/listinfo/coggroup

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[Coggroup] DATE CORRECTION FW: Cognitive Area Seminar Oct 30th 2015: "Neural correlates of endogenous rhythms"
by Esther Schott 26 Oct '15

26 Oct '15

My apologies, I meant Friday October 30th (not Oct 26th). Here is the corrected email, please forward this email to any interested parties: From: Esther Schott Sent: Monday, October 26, 2015 3:33 PM To: Coggroup(a)psych.mcgill.ca Subject: Cognitive Area Seminar Oct 30th 2015: "Neural correlates of endogenous rhythms" ***Apologies for multiple postings*** (1) Reminder of the Cognitive Area Seminar this week (2) Journal Blitz in Thomson House at 5pm on Friday (after the Cognitive Area Seminar) (1) This week, for the Cognitive Area Seminar, we're happy to have Anna Zamm, graduate student in Caroline Palmer's Sequence Production Lab, give a talk: Neural correlates of endogenous rhythms Anna Zamm Human behaviors are often rhythmic. From circadian sleep-wake cycles to solo music performance, many behaviors are characterized by endogenous rhythms: periodicities that occur in the absence of external stimuli. What neural mechanisms support endogenous timing? Evidence from electroencephalography (EEG) suggests that exogenous (externally paced) timing is supported by cortical oscillations that respond to frequencies of external stimuli. Here we investigate whether endogenous rhythms are characterized by cortical oscillations at the frequency of one's own behavior. We address this question in the context of self-paced music performance, a naturally rhythmic behavior in which humans show a wide range of endogenous frequencies. 40 skilled pianists completed a Solo piano performance task in which they continuously performed a melody at a comfortable rate while mobile EEG was recorded. Endogenous rhythms were assessed for each pianist in terms of performance rate (measured by number of tone onsets per second) during Solo performance. Cortical oscillations for each pianist were assessed by computing EEG power spectra across channels during Solo performance. To allow for cross-participant comparison of spectral power associated with performance rates, individual spectra were normalized relative to a fixed window surrounding each pianists' endogenous frequency, corresponding to their Solo performance rates. Findings demonstrated a significant spectral peak at the frequency of endogenous rhythms across channels, with maximal power at fronto-central channels: The observed scalp distribution could not be accounted for by head movement or other motion artefacts. Thus, we provide the first evidence that production of endogenous rhythms is supported by increased power of cortical oscillations corresponding to the frequencies of each musician's performance. Friday, October 30th, 15h30-17h00 Stewart Biology Building, S3/4 (2) After the talk, we will gather in Thomson House for the Journal Blitz; join us to tell us about an article you have read recently, hear about what others have read, and discuss (over drinks and nachos). The seminar and Journal Blitz is open to students, faculty, post-docs, and whoever else who is interested. Please forward this message to your students and other interested parties. Esther --- Esther Schott Graduate Student, MIDC Department of Psychology McGill University http://www.psych.mcgill.ca/labs/midccdem/ -- The schedule for upcoming talks in the Cognitive Area Seminar can be found: https://www.mcgill.ca/psychology/events-colloquia-0/brownbag-series If you would like to be added or removed from the list, please go to the link below and follow the instructions. http://mx0.psych.mcgill.ca/mailman/listinfo/coggroup

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[Coggroup] Cognitive Area Seminar Oct 26th 2015: "Neural correlates of endogenous rhythms"
by Esther Schott 26 Oct '15

26 Oct '15

***Apologies for multiple postings*** (1) Reminder of the Cognitive Area Seminar this week (2) Journal Blitz in Thomson House at 5pm on Friday (after the Cognitive Area Seminar) (1) This week, for the Cognitive Area Seminar, we're happy to have Anna Zamm, graduate student in Caroline Palmer's Sequence Production Lab, give a talk: Neural correlates of endogenous rhythms Anna Zamm Human behaviors are often rhythmic. From circadian sleep-wake cycles to solo music performance, many behaviors are characterized by endogenous rhythms: periodicities that occur in the absence of external stimuli. What neural mechanisms support endogenous timing? Evidence from electroencephalography (EEG) suggests that exogenous (externally paced) timing is supported by cortical oscillations that respond to frequencies of external stimuli. Here we investigate whether endogenous rhythms are characterized by cortical oscillations at the frequency of one's own behavior. We address this question in the context of self-paced music performance, a naturally rhythmic behavior in which humans show a wide range of endogenous frequencies. 40 skilled pianists completed a Solo piano performance task in which they continuously performed a melody at a comfortable rate while mobile EEG was recorded. Endogenous rhythms were assessed for each pianist in terms of performance rate (measured by number of tone onsets per second) during Solo performance. Cortical oscillations for each pianist were assessed by computing EEG power spectra across channels during Solo performance. To allow for cross-participant comparison of spectral power associated with performance rates, individual spectra were normalized relative to a fixed window surrounding each pianists' endogenous frequency, corresponding to their Solo performance rates. Findings demonstrated a significant spectral peak at the frequency of endogenous rhythms across channels, with maximal power at fronto-central channels: The observed scalp distribution could not be accounted for by head movement or other motion artefacts. Thus, we provide the first evidence that production of endogenous rhythms is supported by increased power of cortical oscillations corresponding to the frequencies of each musician's performance. Friday, October 26th, 15h30-17h00 Stewart Biology Building, S3/4 (2) After the talk, we will gather in Thomson House for the Journal Blitz; join us to tell us about an article you have read recently, hear about what others have read, and discuss (over drinks and nachos). The seminar and Journal Blitz is open to students, faculty, post-docs, and whoever else who is interested. Please forward this message to your students and other interested parties. Esther -- If you would like to be added or removed from the list, please go to the link below and follow the instructions. http://mx0.psych.mcgill.ca/mailman/listinfo/coggroup

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[Coggroup] Cognitive Area Seminar replaced by Hebb Lecture- F 23 Oct at 15h30- Dr Pihl
by Esther Schott 20 Oct '15

20 Oct '15

*** apologies for multiple postings*** Hi all, The Cognitive Area Seminar this week is replaced by the Hebb lecture: ----- Faculty Hebb Lecture F 23 october 2015 15h30 Stewart Biology S1/4 Pathways to Pathology Diagnostic names, often with little treatment value, proliferate and propagate in the area of behavioral disorders. Disorders whether single or co-morbid may have many differential etiological pathways. Knowledge of these pathways is often critical for treatment regimens. The area of substance abuse provides an example for discerning differential pathways and targeted interventions. An experimental program, of many years, based on challenge studies of at risk individuals for alcohol and drug problems is offered to punctuate these points. Reception following talk, Stewart 8th floor ---- You are receiving this message because you are a member of a listserv for the McGill Psychology Department Cognitive Area Seminar. The speakers for this semester are listed here: http://www.mcgill.ca/psychology/events-colloquia-0/brownbag-series If you would like to be added or removed from the list, please go to the link below and follow the instructions. http://mx0.psych.mcgill.ca/mailman/listinfo/coggroup

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[Coggroup] Cognitive Area Seminar Oct 16th CANCELLED
by Esther Schott 13 Oct '15

13 Oct '15

Hi all, This week, the Cognitive Area Seminar (Oct 16th) will be cancelled due to the McGill Undergraduate Research Conference<https://www.mcgill.ca/science/research/ours/urc/2015> scheduled that day. The next talk in the Cognitive Area Seminar will be by Anna Zamm on Oct 30th 2015, hope to see you there! Esther

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[Coggroup] Reminder of Cognitive Area Seminar TODAY
by Esther Schott 09 Oct '15

09 Oct '15

Hi all, Just a quick reminder that Kathrin Rothermich (SCSD) will give her talk "Introducing RISC: A new open-source video database for testing social perception in healthy and neuropsychological populations" today at 3:30pm. Esther From: Esther Schott Sent: Tuesday, October 06, 2015 5:36 PM To: Coggroup(a)psych.mcgill.ca Subject: Cognitive Area Seminar this week (+Pizza!) ***Apologies for multiple postings*** This week, we're excited to have Kathrin Rothermich, PostDoc with Marc Pell at the School of Communication Sciences and Disorders (McGill) give a talk: Introducing RISC: A new open-source video database for testing social perception in healthy and neuropsychological populations Kathrin Rothermich McGill University Nonliteral language, such as jocularity, sarcasm, or white lies, occurs frequently in daily communication. During natural social interactions, linguistic and paralinguistic information about nonliteral speech unfolds simultaneously in several communication channels. However, there are four common limitations in studies investigating social communication and speaker intentions: (1) using only uni-modal stimulation, i.e. visual; (2) designing static experiments depicting stimuli that are far away from everyday communication; (3) neglecting important factors such as discourse context and relationship type; and (4) insufficient stimulus control and number of trials to perform neuroimaging experiments. Relational Inference in Social Communication (RISC) is a newly developed database, which entails short video vignettes depicting social interactions, including sincere, sarcastic, jocular, and white lie exchanges. For the first time we also manipulated the type of social relationship between communication partners (e.g. friends vs. couple) and carefully controlled the availability of contextual cues (e.g. preceding conversations) while keeping lexical-semantic content constant. First validation data reveals an overall accuracy for identifying speaker intentions above 80 %, indicating that our material is suitable for testing healthy and neuropsychological populations. Results further show that both relationship type and context are influencing the categorization of literal and nonliteral interactions. Additionally, we gathered data on social appropriateness, perceived politeness and affective impact, which turned out to differ between literal and non-literal intentions. The results demonstrate that it is important to consider social as well as discourse context when studying speaker intentions. In terms of potential applications, we note increasing interest in past years in how speaker intentions are understood by individuals with psychiatric disorders (autism, schizophrenia), neurodegenerative disease (Alzheimer's or Parkinson's disease, fronto-temporal dementia), and traumatic brain injury. By including crucial aspects that have often been neglected in previous research, RISC represents a contemporary set of naturalistic video stimuli that creates a useful resource for future neuroscientific research. Friday, October 9th, 15h30-17h00 Stewart Biology Building, S3/4 There will be pizza at the talk. Please forward this message to your students and other interested parties. Thanks, Esther ------ Esther Schott Graduate Student, MIDC Department of Psychology McGill University http://www.psych.mcgill.ca/labs/midccdem/ You are receiving this message because you are a member of a listserv for the McGill Psychology Department Cognitive Area Seminar. The speakers for this semester are listed here: http://www.mcgill.ca/psychology/events-colloquia-0/brownbag-series If you would like to be added or removed from the list, please go to the link below and follow the instructions. http://mx0.psych.mcgill.ca/mailman/listinfo/coggroup

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[Coggroup] Cognitive Area Seminar this week (+Pizza!)
by Esther Schott 06 Oct '15

06 Oct '15

***Apologies for multiple postings*** This week, we're excited to have Kathrin Rothermich, PostDoc with Marc Pell at the School of Communication Sciences and Disorders (McGill) give a talk: Introducing RISC: A new open-source video database for testing social perception in healthy and neuropsychological populations Kathrin Rothermich McGill University Nonliteral language, such as jocularity, sarcasm, or white lies, occurs frequently in daily communication. During natural social interactions, linguistic and paralinguistic information about nonliteral speech unfolds simultaneously in several communication channels. However, there are four common limitations in studies investigating social communication and speaker intentions: (1) using only uni-modal stimulation, i.e. visual; (2) designing static experiments depicting stimuli that are far away from everyday communication; (3) neglecting important factors such as discourse context and relationship type; and (4) insufficient stimulus control and number of trials to perform neuroimaging experiments. Relational Inference in Social Communication (RISC) is a newly developed database, which entails short video vignettes depicting social interactions, including sincere, sarcastic, jocular, and white lie exchanges. For the first time we also manipulated the type of social relationship between communication partners (e.g. friends vs. couple) and carefully controlled the availability of contextual cues (e.g. preceding conversations) while keeping lexical-semantic content constant. First validation data reveals an overall accuracy for identifying speaker intentions above 80 %, indicating that our material is suitable for testing healthy and neuropsychological populations. Results further show that both relationship type and context are influencing the categorization of literal and nonliteral interactions. Additionally, we gathered data on social appropriateness, perceived politeness and affective impact, which turned out to differ between literal and non-literal intentions. The results demonstrate that it is important to consider social as well as discourse context when studying speaker intentions. In terms of potential applications, we note increasing interest in past years in how speaker intentions are understood by individuals with psychiatric disorders (autism, schizophrenia), neurodegenerative disease (Alzheimer's or Parkinson's disease, fronto-temporal dementia), and traumatic brain injury. By including crucial aspects that have often been neglected in previous research, RISC represents a contemporary set of naturalistic video stimuli that creates a useful resource for future neuroscientific research. Friday, October 9th, 15h30-17h00 Stewart Biology Building, S3/4 There will be pizza at the talk. Please forward this message to your students and other interested parties. Thanks, Esther ------ Esther Schott Graduate Student, MIDC Department of Psychology McGill University http://www.psych.mcgill.ca/labs/midccdem/ You are receiving this message because you are a member of a listserv for the McGill Psychology Department Cognitive Area Seminar. The speakers for this semester are listed here: http://www.mcgill.ca/psychology/events-colloquia-0/brownbag-series If you would like to be added or removed from the list, please go to the link below and follow the instructions. http://mx0.psych.mcgill.ca/mailman/listinfo/coggroup

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coggroup October 2015