Author Archives: Joseph Pater

Upcoming Cognitive Science events

There are lots of people coming to UMass (and Smith) to give CogSci talks after break – here is a list.

March 19th, 4pm Weinstein Auditorium, Smith College
Richard Aslin (Yale University) ?
http://haskinslabs.org/people/richard-aslin
“What Looking Times and Brain Imaging Can Tell Us About Attention and Learning in Infants”

March 30th, 3:30, ILC N400
Colin Phillips (https://www.colinphillips.net) Linguistics colloquium

April 13th, 2:30, ILC N400
Music and Language CogSci Incubator
Stephanie Acevedo (https://stefanieacevedo.com)
David Temperley (http://davidtemperley.com)

April 19th, 1:00, ILC N400
Robert Siegler (http://www.psy.cmu.edu/~siegler/) “Numerical Development”

April 20th, 3:30, ILC S131
Sue Carey (https://psychology.fas.harvard.edu/people/susan-e-carey) “Do Non-Linguistic Creatures have a Fodorian (Logic-Like/Language-Like) Language of Thought?”

April 27th, 3:30, ILC N400
Meghan Clayards (https://www.mcgill.ca/linguistics/people/faculty/clayards) Linguistics colloquium

May 19-20th, South College Room W245
Lynschrift18: A conference to honor Lyn Frazier on the occasion of her retirement (https://websites.umass.edu/lynschrift18/program/)

Ma in Cognitive Brown Bag Weds. 3/21 at noon

In the next cognitive brown bag, 3/21, 12:00-1:20, Tobin 521B, Quili Ma (PBS) will present: “Testing recognition models with joint single-item and forced-choice recognition.” The abstract follows.

Two models of recognition memory: the double-high threshold (2HT) and the unequal variance signal detection (UVSD) models were compared with the forced-choice experiment. Participants studied a list of words. In the test phase, they first responded “studied” or “not studied” to single word recognition for a few trials and then indicated the “studied” word in 2AFC trials. A 2AFC word pair contained a target and a lure which had both been previously given the same response. So one of the words was incorrectly recognized. The 2HT model predicted that forced-choice trials’ accuracy should increase from the single-recognition trials because between the two words, one had no memory evidence retrieved and the other word was very likely to be a detection result which had infallible information. On the contrary, the UV model predicted lower accuracy of the forced-choice trials because the target had to be compared with a lure which had very strong evidence of being studied. The empirical data turned out to support the UV model’s prediction.

Richard Aslin lecture 4pm, 19 March, Smith College: Infant Learning — Looking Times and Brain Imaging

Richard Aslin (Yale University), 4pm, Monday March 19th, Weinstein Auditorium, Smith College [co-sponsored by the Developmental Science Initiative and the Office of the President, Smith College]
?
http://haskinslabs.org/people/richard-aslin

“What Looking Times and Brain Imaging Can Tell Us About Attention and Learning in Infants”

During the course of development, human infants gather information about the external world without the benefit of an extensive base of knowledge that adults automatically bring to bear on perceptual, motor, cognitive, and language tasks. What mechanisms allow infants to acquire this initial level of information and how does that information guide subsequent learning? Clearly, most learning that occurs in infancy, and a substantial amount of learning in adulthood, is performed without instruction—it is implicit and based on an analysis of the distributional properties of environmental stimulation. In this lecture, Prof. Aslin will present research findings and implications, from studies using behavioral and brain optical imaging techniques.

After 33 years on the faculty in the Department of Psychology and then Brain and Cognitive Sciences at the University of Rochester, Richard Aslin has joined Haskins Laboratories as a senior scientist. He will be re-establishing a BabyLab to carry on the outstanding tradition of developmental research at Haskins, complementing the on-going studies of older infants and young children by other Haskins scientists.

Music and Language CogSci Incubator April 13th at 2:30 with Acevedo and Temperley

There is growing interest in the 5 Colleges in music cognition and its relation to language. To build on this, Mara Breen (Mount Holyoke Psychology and Education), Joe Pater (UMass Linguistics) and Christopher White (UMass Music and Dance) have organized the first “CogSci Incubator” event. On April 13th, Stephanie Acevedo of Yale University (https://stefanieacevedo.com) and David Temperley of the Eastman School of Music (http://davidtemperley.com) will present talks from 2:30 – 5 in N400 of the Integrative Learning Center. This will be followed by a reception at the Hangar  Pub and Grill. In preparation for Temperley’s visit, there will also be two meetings, on April 3rd and 10th, from 3-4:15, to discuss his new book The Musical Language of Rock. Details on those meetings, including location, will be forthcoming.

https://global.oup.com/academic/product/the-musical-language-of-rock-9780190870522?cc=us&lang=en&#

These events are sponsored by the CogSci Initiative, the Department of Linguistics, and the Department of Music and Dance. If you are interested in “Incubating” another emerging UMass CogSci research area, please contact Joe Pater.

Angelika Fest in Linguistics Friday and Saturday March 9th and 10th

In celebration of Angelika Kratzer on the occasion of her retirement and of her 70th birthday, there will be a pair of talks on Friday, and a workshop on Saturday.

The two public colloquia will feature  Lisa Matthewson (“Tense systems in allegedly tenseless languages”) and Manfred Krifka (“Commitments, Judgments, Propositions”) and will be held in the Integrative Learning Center S211 on Friday 2:30-5:30. More details can be found here:  https://websites.umass.edu/kratzerfest/fest-site/colloquia-by-manfred-krifka-and-lisa-matthewson/.

Starting at 9 am Saturday, Semantics 2018: Looking Ahead is a day-long workshop that is free and open to everyone. No registration is necessary. The program is available here: https://websites.umass.edu/kratzerfest/fest-site/semantics-2018-looking-ahead/.

Crni? in Linguistics Thursday March 8th

“Negative Polarity Items: A New Perspective”
Luka Crni? (The Hebrew University of Jerusalem)
Thursday 3/8 at 4PM, ILC N400
Negative Polarity Items (NPIs) have a more restricted distribution than other expressions in their syntactic categories. While it is uncontroversial that providing an adequate description of this distribution requires recourse to semantics, such a description has remained elusive. This holds, in particular, due to the intricate behavior of NPIs in modal and non-monotone environments, in some of which they exhibit sensitivity to extra-grammatical factors. Drawing on independently-motivated mechanisms in grammar, we show how such descriptive challenges can be answered while maintaining that the special condition that NPIs are subject to is based on a notion of entailment. Along the way, we discuss two further features of the system: its ability to account for variation in the distribution of certain NPIs without further stipulations, and its straightforward compatibility with an explanation of the special condition on NPIs.

Chang in Cognitive Brown Bag Wednesday March 7 at noon

This week’s cognitive brown bag speaker (3/7, 12:00-1:20, Tobin 521B) will be Junha Chang (PBS).  Title and abstract are below.

Search guidance is sometimes, but not always, adjusted by experience with search discriminability

These experiments show that previous experience with certain types of visual search can influence current search guidance, and explore factors that determine whether these effects of experience arise or not. In a dual-target search task, two subject groups either experienced difficult color discriminability in half of the trials (i.e., hard-discrimination group) or experienced easy discriminability in all trials (i.e., easy-discrimination group). In both experiments, subjects were required to respond whether either of two targets was present or not among distractors. In Experiment 1, the same two colors served as possible target colors for the entire experiment. Fixation rate was high for distractors with colors similar to a target color, and gradually decreased for colors less and less similar to the target color. There was no significant difference between two groups in both eye movement and behavioral results. In Experiment 2, the colors of the two targets were varied from trial to trial in order to increase working memory demand. The hard-discrimination group fixated more distractors with target-dissimilar colors than the easy-discrimination group, suggesting the hard-discrimination group used color information to guide search less than the easy-discrimination group. The results demonstrate that experience of difficult color discriminability discourages observers from guiding attention by color and encourage them to use shape information, but only when working memory load is demanding.

Haghtalab in Data Science Weds. Feb. 21 at 4 pm

What: DS Theory Seminar
Date: February 21, 2018
Time: 4:00 – 5:00 P.M.
Location: Computer Science Building, Room 151

Nika Haghtalab
Carnegie Mellon University

“Machine learning by the people, for the people”

Abstract: Typical analysis of learning algorithms considers their outcome in isolation from the effects that they may have on the process that generates the data or the entity that is interested in learning. However, current technological trends mean that people and organizations increasingly interact with learning systems, making it necessary to consider these effects, which fundamentally change the nature of learning and the challenges involved. In this talk, I will explore three lines of research from my work on the theoretical aspects of machine learning and algorithmic economics that account for these interactions: learning optimal policies in game-theoretic settings, without an accurate behavioral model, by interacting with people; managing people’s expertise and resources in data-collection and machine learning; and collaborative learning in a setting where multiple learners interact with each other to discover similar underlying concepts.

Bio: Nika Haghtalab is a Ph.D. candidate at the Computer Science Department of Carnegie Mellon University, co-advised by Avrim Blum and Ariel Procaccia. Her research interests include learning theory and algorithmic economics. She is a recipient of the IBM and Microsoft Research Ph.D. fellowships and the Siebel Scholarship.

Syrett in Cognitive Bag Lunch in Linguistics Weds. Feb. 21

The Cognitive Bag Lunch on Weds. Feb. 21 will be held in ILC N400 at 12:05, and will feature Kristen Syrett of Rutgers University (http://rci.rutgers.edu/~syrettk/).  To compensate for asking our colleagues from PBS to make the trek across campus, we will serve pizza (starting at 11:50). Title and abstract follow.

Context sensitivity in adjectives and nominals: Evidence from children and adults

Kristen Syrett

Rutgers University – New Brunswick

Part of what it means to become a proficient speaker of a language is to recognize that the context in which we communicate with each other, including what a speaker’s intentions or goals are, affects the way we arrive at certain interpretations. This seems entirely reasonable for context-dependent expressions like pronouns (they) or relative gradable adjectives (big,expensive), but what about seemingly stable expressions, such as count nouns (fork, ball)? Are words like these—words that appear early in child-directed and child-produced speech—also sensitive to context? In collaborative research with Athulya Aravind (MIT), we have asked precisely this question. We start with a curious yet robust puzzle observed in the developmental psychology literature: young children, when presented with a set of partial and whole objects (like forks) and asked to count or quantify them, appear to treat the partial objects as if they were wholes (Shipley & Shepperson 1990, among others). While children’s non-adult-like behavior may be taken to signal a conceptual shift in development, we adopt a different perspective, entertaining the possibility that children are doing something that adults might indeed be willing to do in certain instances, and that their response patterns reveal something interesting about the context sensitivity of nouns, which we argue is similar to that seen with gradable adjectives. Across three tasks, we show that adults and children are more alike than the previous research has revealed, in that members of both age groups both include partial objects and impose limits on their inclusion in a category, depending on the speaker’s intentions or goals, and the perceptual representation of the object. Furthermore, I draw connections between children’s behavior in this domain to their behavior previously observed in their non-adult-like responses to implicit and explicit comparatives, which still permit an adult-like semantics. Thus, we argue there is conceptual and linguistic continuity in this aspect of development, and that experimental data from both children and adults shed light on the semantics of nominal expressions.

Deo in Linguistics Friday Feb. 16 at 3:30

Ashwini Deo of Ohio State University will be presenting a talk Friday at 3:30 in N400. The title and abstract are below. All are welcome!

Title: Alternative circumstances of evaluation and the ser/estar distinction in Spanish

Abstract: The Spanish copulas ser and estar have distributional and interpretational patterns that have resisted an adequate analysis. In this talk, I work towards a unified analysis that treats the two copulas as being presuppositional variants that are differentially sensitive to properties of the circumstances at which the truth of the copular sentence is evaluated. On the proposed analysis,  estar presupposes that the prejacent is boundedly true at the evaluation circumstance. The prejacent’s bounded truth at a circumstance i at a given context of use c depends on two conditions:

(a) there are  no-weaker alternative circumstances i? accessible at c where the prejacent is false.

(b)  i  is  a maximal verifying circumstance at c.

Central to the analysis is the notion of a strength ordering over alternative circumstances of evaluation — a circumstantial  counterpart  to the more familiar  ordering over alternative propositions.  Assuming that this content is conventionally associated with estar  allows for an account of  its distinct flavors and readings with a range of predicates.  ser is shown to be associated with its own inferences that derive from its status as the presuppositionally  weaker, neutral member of the pair.