Abstract concepts
Transcription
Abstract concepts
From affordances to abstractness: An embodied and grounded perspective on language anna m. borghi 1 University of Bologna 2 Institute of Sciences and Technologies of Cognition, CNR, Rome [email protected] Web-site: http://laral.istc.cnr.it/borghi Rome, Modelact, June 7, 2016 OUTLINE Language and affordances – theories of reuse Beyond language grounding: Words As Tools that modify space perception Abstract concepts: Words As social Tools (WAT): !"#$%&'()*+$,+-$&.+/*(/$%0"$&$%+'(1+ 20(340/&0)5/$)0'2+0(,$%"'&0$( Acquisition Embodiment: activation of the mouth Linguistic variability Why importance of language/ Why mouth activation? AFFORDANCES BETWEEN PERCEPTION AND ACTION Affordances (Gibson, 1979) action opportunities that the environment offers to the subject Affordances concern BOTH perception and action, they refer both to the world and to the individuals, they are variable Ellis & Tucker (2000): microaffordances: brain assemblies of visuomotor associations concerning specific action components – beyond a purely externalist view (Gibson) (for a review Thill et al. 2013) STABLE AND VARIABLE AFFORDANCES Affordances can b be (Borghi & Riggio, 2009; 2015): d !"#$%&stable' / permanent ! based on longterm visuomotor associations. E.g., size. canonical (subset of stable affordances): e.g., canonical orientation - more dependent on the context !"#$%&temporary'/variable ! based on online visual information. E.g., current orientation of an object handle. No dichotomy but continuum Borghi & Riggio,2009; Borghi & Riggio, 2015; Sakreida et al., under review STABLE AND VARIABLE AFFORDANCES META-ANALYSIS: VENTRO-DORSAL VS. DORSO-DORSAL STREAM Meta-analysis: l i studies t di 1995-2015 Stable: stronger lefthemisphere and frontoparietal activations Variable: bilateral, dorsally-located frontoparietal activations. Stable: ventrodorsal V-D stream Variable: dorsodorsal D-D route (Rizzolatti & Matelli, 2003) Sakreida et al., under review ! LANGUAGE AND STABLE VS. VARIABLE AFFORDANCES action ti vs. observation b ti sentences t (e.g. grasp / look at the brush) followed by images of everyday objects graspable with a power vs. a precision grip with affordances presented in canonical or in reversed orientation (upright vs reversed) Task: Is the object in the picture the same as the object mentioned in the sentence (Zwaan et al, 2002)? Borghi & Riggio, 2009 LANGUAGE AND STABLE VS. VARIABLE AFFORDANCES TRUE ITEMS: RTs were faster with upright than with reversed objects - i.e. in case of correspondence between the canonical affordance location (up, down), and the field in which it was presented (upper, lower). with action than with observation verbs. LANGUAGE AND STABLE VS. VARIABLE AFFORDANCES /0123 45362 /0123(45362( Factors: Sentence (action – observation Orientation (upright – reversed) Grip (same – different) with action sentences RTs were slower with objects graspable with the same grip than with objects graspable with a different grip. Interference. thus: during sentence comprehension simulation of the object grip Language encodes "#$%&'($))*+,$-.'"((size/grip, canonical orientation) CONTEXT-DEPENDENCY OF AFFORDANCES: LANGUAGE AND BODY Verbs: observation, manipulation, function Task: Respond if the picture-verb combination makes sense (e.g., bottle-pour, not bottle-cut) 3D objects: near, far CONTEXT-DEPENDENCY OF AFFORDANCES: LANGUAGE AND BODY 1-.'2-.,($03 45&.02-.,($03 B>> ! 6-0$ 78,9:;,-%< A?> ! A>> @?> ! ! @>> =?> =>> "#$%&'($ )%&'($ *+,-./0&'($ manipulation and function verbs: faster responses when objects are in the near than in the far space; no difference is present for observation verbs. function slightly faster than manipulation, especially in the peripersonal space: object represented in terms of what you do with them. AFFORDANCES, CONTEXT AND AUTOMATICITY: OPEN ISSUES Affordances are flexible and vary depending on 6$(&*7& (distance from the body) Linguistic context (kind of verb) Can we still say they are automatic (van Elk et al, 2013; van Dam et al., 2014)? C*78'#9#9*-8+ differently solved depending on the task? Manipulation vs. function? Linguistic task: FUNCTION Stable vs. variable affordances? Linguistic task: STABLE affordances :*+;<9=(>?@AB(:*+;<9=(C9;;9* D>?@EF( LANGUAGE: SIMULATION AND BEYOND Language and simulation: Language recruits perception, action and emotional systems (re-use) (Anderson, 2010, 2014; Gallese, 2008) affordances But it also modifies them: e.g. it is more sensitive to stable and to functional affordances Beyond simulation: language is also a tool performing actions in the physical and social space: words modify our space perception (presence of others) Linguistic and social info have a major influence on how we represent abstract concepts :*+;<9=(2.*+*&&9=(G$&9;9*+'=(:$&,$""$++'=(5H77*&9-9=(>?@I WORDS AS TOOLS THAT MODIFY SPACE PERCEPTION For each trial 3 objects located in the near, border and far space Children were asked to grasp one object and put it into a black box in the indicated hole. Training: “Pick up the right object and place it in the box (different shaped holes)” RAKE border, far WORD border, far (children had to use the word color to obtain the object) SHORT RAKE border 2.*+*&&9=(J$(K+$#9=(L9.*(M(:*+;<9=(>?@! WORDS AS TOOLS THAT MODIFY SPACE PERCEPTION Estimations (pre/post training): Verbal Motor-based !"#$%&'()*+! WORDS AS TOOLS THAT MODIFY SPACE PERCEPTION !"#$%&'()*+! Main effect of Space : far space M = 19.44 cars border space M = 13.85 cars No effect of Kind of training / Phase. 16 WORDS AS TOOLS THAT MODIFY SPACE PERCEPTION MAXIMAL DISTANCE: Main effect of Training. Motor estimations relative to the border but not the far space changed significantly after the training sessions. Both tools and words modify space perception 17 extending the bodily space. OUTLINE Language and affordances - reuse 9&'-2*+'(1+:'%0'-2*+',,$%1'()*/ ;2*70-020&<=+10/&'()*+,%$"+&.*+-$1<+'(1+20(340/&0)+)$(&*7& Beyond simulation: Words As social Tools >7&*(/0$(+$,+&.*+-$102<+-$%1*%/ ?-/&%')&+)$()*#&/=+@$%1/+?/+/$)0'2+A$$2/+B@?AC Embodiment: mouth activation Linguistic diversity Why importance of language/mouth activation? WHAT ARE ABSTRACT CONCEPTS? FRASI FRASI ABSTRACTION AND ABSTRACTNESS Capability to abstract: sophisticated human ability Difference ABSTRACTION – ABSTRACTNESS Categorization always implies some sort of abstraction: e.g. dog – animal. Animal more general, but still it may evoke a collection of single, bounded and concrete referents. Here focus on abstractness. E.g. freedom, fantastic vedi metafore; idiomi 19 WHAT ARE ABSTRACT CONCEPTS? DICHOTOMY OR CONTINUUM? -$&&2* Difficulty in defining abstract vs. concrete words. CONTINUUM, no dychotomy ,%**1$" Different kind of grounding. More abstract entities = Not clearly bounded objects as referents. E.g. “truth” (talk by K. PASTRA) Complexity. “abstract concepts often capture vedi metafore; idiomi complex configurations of physical and mental events” (Barsalou, 2003). E.g. “cause” Meaning variability. Higher meaning variability, both within and across subjects. E.g. “freedom” D$%3.0 E+D0(F$,/F08+GHIJ 20 PROBLEM – EG THEORIES AND ABSTRACT WORDS Abstract words = crucial test for embodied theories Most evidence limited to concrete and highly imageable words (focus on action words and sentences) How can we claim that abstract words are grounded in perception, action, emotion systems? (see work on abstract emotion terms by Moseley, 2012, 2013; Dreier et al., 2015 talk by PULVERMUELLER) ABSTRACT CONCEPTS AND EMBODIED THEORIES Abstract concepts (e.g. “freedom”, “philosophy”) = the challenge to explain them has become urgent due to the widespread of embodied and grounded theories Important only for embodied theories? NO! e.g. distributional theories (meaning = co-occurrence of words in large corpora) do not have specific problems in explaining abstract concepts but they are unable to convincingly explain all kinds of concepts due to a symbol grounding problem (talk by ANGELO CANGELOSI) WAT (Words As social Tools) VIEW Words are tools, not pointers: Beyond a referential view of words grounding Words are social tools which: help us to interact with the social and physical environment modify perception and categorization extend our cognitive abilities Beyond a purely embodied view, at the bridge with an extended view of cognition. D$%3.08+9)$%$2208+6'2030$%*8+D'21'//'%%*8+A4""$20(08+GHIK WAT VIEW ON ABSTRACT CONCEPTS WAT (Words As social Tools) view (Borghi & Cimatti, 2009, 2012; Borghi & Binkofski, 2014). WAT proposal on abstract concepts: focus on the social aspects involved in language acquisition (Vygotskij, 1934) WAT PROPOSAL ON ABSTRACT CONCEPTS abstract concepts: t b between t sensorimotor i t and d social/linguistic experience 1. Importance of linguistic/social experience for their representation 2. Linguistic/social acquisition 3. Activation of language activation Mouth 4. Linguistic variability D$%3.0 E+60"'&&08+GHHMN+D$%3.0 E+D0(F$,/F08+GHIJ GL ()*+),-0% 12()*+),-% 3,1 &()*+),-'' &.)//'' O Concrete concepts/words: categories formed on a sensorimotor basis: e.g., ball O Abstract concepts/words: social and linguistic experiences help us to put together a variety of bodily states, of internal and external experiences etc. e.g. fantasy ABSTRACT CONCEPTS ACQUISITION: ROLE OF LINGUISTIC KNOWLEDGE Li Linguistic i ti modality d lit off acquisition. i iti Lit Literature t on Modality of Acquisition (Wauters et al., 2003): perceptual vs. linguistic word acquisition. With age increase of linguistic acquisition. E.g. pencil, art, tundra Great amount of known words. In order to acquire “hard” words, children need to master a consistent amount of words and of linguistic knowledge (Gleitman et al., 2005). Influence of language. Influence of language more marked in the conceptualization of words referring to relations (verbs, prepositions) than to objects or animated entities (nouns) (Gentner, 2006; Gentner & Boroditski, 2011) >N ABSTRACT CONCEPTS ACQUISITION: ROLE OF SOCIAL COMPETENCES Infants: importance of linguistic and social input. Mothers produce abstract words (e.g. «all gone»; «more») also in absence of their referent (Bergelson & Swingley, 2013): importance of the linguistic/social input. Infants. Social abilities. When children start to fixate the words said by their parents . Abstract words comprehension: sophisticated social cognition abilities are required: 10 months, 14 months: ability to follow others’ gaze and engage in joint action (Bergelson & Swingley, 2013) Children.Testimony. Literature on testimony: 3-4 year olds: able and keen to monitor information sources, particularly in relation to abstract domains (god, religion, death, etc.) >O ABSTRACT CONCEPTS: BOTH GROUNDED AND EMBODIED E.g. fantasy, ntasy fantastic, fantastic freedom, freedom free ;'(&'/<P ;%**1$"P Grounded. Both concrete AND abstract words are grounded in experiences. Embodied. Due to their link with language, abstract concepts should activate the mouth-related motor system more, while concrete concepts activate vedi the hand-related metafore; idiomi motor system more. Attention! This does not imply that abstract concepts are not represented also in terms of their semantic content! (Wilson-Mendenhall et al., 2013) 29 ACQUISITION OF NOVEL CATEGORIES AND ACTIVATION OF THE MOUTH Training 1. participants either manipulated novel objects / observed groups of objects interacting in novel ways. Concrete defined as: manipulable, single object as referent. Training 2: they read the linguistic labels referring to concepts (e.g., “fusapo”) (labels could be accompanied by an explanation of their meaning). ;4/'#$ B)$()%*&*C Q'(0,' B'-/&%')&C D$%3.08+;24"0(08+60"'&&08+R'%$))$ E+9)$%$2208+GHII+ I? ACQUISITION OF NOVEL CATEGORIES AND ACTIVATION OF THE MOUTH !"#$%&#'(")*+#,&-. Property verification ti ttask. k R Results: lt Th The microphone i h use has an advantage over the keyboard use for abstract words – activation of the MOUTH The advantage is more marked in the explanation condition. This is not simply due to phono-articulatory aspects: the advantage disappears when the label and explanation contrast with the already formed perceptually based category I@ ACQUISITION OF NOVEL CATEGORIES AND ACTIVATION OF THE MOUTH Training i i ((mimicking i i ki off conceptual t l acquisition): i iti ) Participants directly manipulate entities (objects/relations) The experimenter verbally explains the word meaning ! Objects (concrete) eg chair ! Relations (abstract) e.g. above Label + verbal explanation ! Label + verbal explanation e.g. “CALONA is a staggered e.g. “BANOTO is when 2 objects touch stack with a yellow protrusion protrusion” each ea other her to form a concavity concavity” P+$-9#*=(2.*+*&&9 M(:*+;<9=(>?@E ACQUISITION OF NOVEL CATEGORIES AND ACTIVATION OF THE MOUTH Do they belong to the same category? Categorical recognition task: Before and after linguistic training. The performance with concrete categories was better than that with abstract categories. The linguistic training facilitated more abstract than concrete concepts. With no linguistic training hand responses were facilitated, while with linguistic training the hand-mouth difference disappeared. II BODY PART RATINGS: ABSTRACT SENTENCES AND MOUTH Mental state, Emotional, Math-related sentences – «She memorizes the procedure», «She feels happy», «She determines the sum». Body part rating: evaluate how much the action described in each sentence involved the mouth, the hand, and the leg Results: involvement of the mouth for mental states and of both mouth and hand for emotional sentences, of the hand for math-related ones. P<9*=(Q$;<9 M(5'##$7$-#9=(>?@I IA BODY PART RATINGS: ABSTRACT WORDS AND MOUTH The activation of linguistic information and the mouth can depend not on abstractness but on heterogeneity of a category RATINGS (see Ghio et al., 2013): how much is the hand/mouth involved in a possible action with the target? Database by Barca et al. (2011) Difference between : ! Concrete Compact (e.g., penguin) ! Concrete Heterogeneous (e.g. tool) Vs. Abstract (e.g., comfort) P+$-9#*=(2.*+*&&9 M(:*+;<9=(>?@E 35 RESPONSE TIMES: ABSTRACT WORDS AND MOUTH 10 abstract and 10 concrete Italian words (database by Della Rosa et al., 2010) – significantly different for Abstractness, Concreteness, Imageability, Acquisition Modality, Age of Acquisition, Contextual Availability. Not different in Familiarity and Average Word Length. E.g. hat, hen, flag – justice, career, freedom. Each combined with a concrete and an abstract definition rated by an independent group on 7 point scale Concrete definitions: perceptual features (e.g., «flag» «the Italian one is white red and green») or specific examples and situations (e.g. «carrier»: «when you obtain a promotion at work») Abstract definitions: more «scientific», including taxonomies: e.g. «hen» «domestic bird, it belongs to the family of chickens“. I! R$+.*-' M(:*+;<9=(9-(8+'8S RESPONSE TIMES: ABSTRACT WORDS AND MOUTH Definition (abstract, concrete) as prime, word (abstract, concrete) as target. Task: press the button when the definition is appropriate. Respond by pressing a button (response box) with the hand or with the teeth. Hand-mouth responses manipulated within participants, between blocks. S'%)$(* E+D$%3.08+0(+#%*#T IN RESPONSE TIMES: ABSTRACT WORDS AND MOUTH Main effects of words and definitions: Abstract words and abstract definitions are slower than concrete ones. Interaction words / definitions: with abstract words the advantage of concrete definitions is more pronounced than with concrete words. Consistent with the higher difficulty of abstract words and the higher need to «ground» them in concrete experiences IO RESPONSE TIMES: ABSTRACT WORDS AND MOUTH Main effect: hand responses faster than mouth responses. Interaction effector / kind of words: with abstract words the advantage of the hand over the mouth responses is less pronounced WAT confirmed: first study in which a difference in the activation of mouth and hands is found with «real» concrete and abstract words and with response times. Further study with lexical decision (Mazzuca & Borghi, in prep). I T IT ABSTRACT WORDS AND MOUTH: DEVELOPMENT Longitudinal study Effect of pacifier on word acquisition in children Late use of pacifier: influence on the acquisition of abstract words? How about emotive words? :$+.$=(6$UUH.$ M(:*+;<9=(9-(8+'8S( A? ABSTRACT WORDS AND ACOUSTIC MODALITY Extrinsic Simon task (De Houwer, 2003) Abstract and concrete words (database by Dalla Rosa et al, 2011) SEE POSTER SESSION DY!XUA >6UV!WX UVY9> 2.'++$#9=(1H;&9=(:*+;<9 $-,(L9.*&'##9 9-(8+'8S( A@ WAT PROPOSAL ON ABSTRACT CONCEPTS abstract concepts: t b between t sensorimotor i t and d social/linguistic experience 1. Importance of linguistic/social experience for their representation 2. Linguistic/social acquisition 3. Activation of language activation Mouth 4. Linguistic variability D$%3.0 E+60"'&&08+GHHMN+D$%3.0 E+D0(F$,/F08+GHIJ JG WAT AND ABSTRACT WORDS: CROSSLINGUISTIC EVIDENCE Language diversity: abstract concepts should be more influenced by differences across languages compared to concrete concepts Malt et al. (1999). Categorization of containers. Spanish, English, Chinese speakers. Words extension differs, but convergences in sorting. Many studies on effects of different languages on categorization of TIME (Boroditsky, Casasanto, others…) More evidence required AI A STUDY ON ITALIAN SIGN LANGUAGE (LIS) Sign llanguages are ttypically i ll hi highly hl iiconic, i th thus it might seem obvious that signs are grounded in perception and action. But with signs referring to abstract concepts, a mixture of actions and linguistic information is used: – language complements perception and action Linguistic information could derive from different sources: from the same sign language (e.g., the LIS IMPOSSIBLEAA sign derives from the LIS sign POSSIBLEAA), from a foreign sign language as ASL (e.g., LANGUAGE/LINGUA and LINGUISTICS) from spoken/written Italian (e.g., TRUE). :*+;<9=(G$89+.9=(P9$-)+',$=(Q*&#'++$=(>?@A 44 A STUDY ON ITALIAN SIGN LANGUAGE (LIS) LIS: VERO/VERITA’ (TRUE/TRUTH): Initialization: initial letter of the corresponding word V. LIS: LINGUA (LANGUAGE): Initialization: L shaped hands, initially located in proximity of the mouth, move symmetrically forward with a wrist rotation DIFFERENT KINDS OF ABSTRACT CONCEPTS O O O O O Emotions: more “embodied” than pure abstract concepts Numbers: a peculiar subset of abstract concepts – Finger counting – activation of the hand Ghio et al., 2013 SNARC effects: relations numbers-space-body Task: add or subtract 3 to a starting number for 22 seconds and to say the result of each calculation aloud, for additions and subtractions, respectively), while they are performing an ascending or descending movement taking the elevator or the stairs (Figure 1). 1H;&9=(:$+*-9=(0-'&&9=(:*+;<9 M(L9.*&'##9=(>?@I A! NUMBERS AND GROUNDING D Dependent d t variable: i bl N Number b off correct calculations Congruency effect with the elevator Lack of congruency with the stairs: dual-task (climbing + counting); movement direction: not vertical No effect offline, no effect in imagery condition Hence: during number processing online simulation with the whole body movement Anelli et al., 2014: similar results during left-right walking Number: a peculiar subset of abstract concepts AN OUTLINE Language and affordances – re-use 9&'-2*+'(1+:'%0'-2*+',,$%1'()*/ ;2*70-020&<=+10/&'()*+,%$"+&.*+-$1<+'(1+20(340/&0)+)$(&*7& Beyond simulation: Words As social Tools Extension of the bodily borders ?-/&%')&+)$()*#&/=+@$%1/+?/+/$)0'2+A$$2/ Acquisition of abstract concepts Linguistic and social experiences Embodiment: mouth activation W$:*2+)'&*3$%0*/+')Z40/0&0$(+/&410*/ Y'&0(3+/&410*/ 9&41<+$(+[$%1/+'(1+1*,0(0&0$(/ ?+/&41<+$(+!&'20'(+903(+\'(34'3*+ B\!9C Why importance of language? (talk by D’ausilio) Why mouth activation? WHY IS LANGUAGE SO IMPORTANT FOR ABSTRACT CONCEPTS? Labels are sort of glue Words are social tools Inner speech Language augments our computational abilities Language is a control and prediction system JM WHY IS LANGUAGE SO IMPORTANT FOR ABSTRACT CONCEPTS? Labels s as «glue» - abstract concepts refer to more sparse and diverse experiences compared to concrete concepts. Labels help us «build» the category. Lupyan (2012; Boutonnet & Lupyan, 2015). After hearing the name «dog» visual processing is facilitated compared to when hearing a sound. More crucial for abstract concepts? LH WHY IS LANGUAGE SO IMPORTANT FOR ABSTRACT CONCEPTS? W d as Words s social i l tools tools. l To understand d d abstract b words d we need to rely on other people’s opinions and to possess sophisticated social cognition abilities Abstract concepts: Word tracking strategy (J. Prinz, 2002; 2012): abstract words (e.g., “democracy”) are grasped in part through concrete images, in part through verbal skills. Tracking of definitions used by other members of our community to help reference. LI WHY IS LANGUAGE SO IMPORTANT FOR ABSTRACT CONCEPTS? Inner speech. eech h W Words d can b become internalized i li d and d support our thought processes: e.g., speaking to ourselves helps us to better memorize and plan our actions (Vygotsky, 1986; Alderson-Day & Fernyhough, 2015). More crucial for abstract concepts? LG WHY IS LANGUAGE SO IMPORTANT FOR ABSTRACT CONCEPTS? Language e as a way to improve i our computational i l abilities (e.g. Clark, 1998). Abstract concepts: Representational pluralism (Dove, 2009, 2011, 2014): Importance of language to enhance thought processes, but in his view «the acquisition of language creates a new dis-embodied semantic system, one that has many of the properties usually associated with the amodal symbol systems favored by traditional cognitive science.» LK WHY IS LANGUAGE SO IMPORTANT FOR ABSTRACT CONCEPTS? Language as a controll system and d a predictive di i system Language is not only a communication system, but a control system that programs human mind manipulating sensorimotor experiences (Lupyan & Bergen, 2015). Language can provide a means of building predictions: for example, listening to a word can help our visual system to process noisy inputs (Lupyan & Clark, 2015). Stronger for abstract concepts? EA LJ WHICH MECHANISM UNDERLIES THE ACTIVATION OF THE MOUTH? Re-enactment? (possibly through inner speech) We could represent abstract words re-enacting the linguistic/social experience of their acquisition, including the sounds of the words, and the explanations of their meanings Supporting evidence: acquisition of novel words: the responses with the mouth are faster when explanations are provided the mouth responses are faster after linguistic training abstract words are associated to the acoustic modality? To investigate: role only of the original acquisition? GLUE SIGN TRACKING EE LL WHICH MECHANISM UNDERLIES THE ACTIVATION OF THE MOUTH? Re-explanation? l ti Inner speech: We could reexplain to ourselves their meaning, formulating predictions against which sensory experiences can be assessed Compatible evidence: mental states concepts yield higher mouth ratings abstract words are associated to the acoustic modality? AUGMENTED COMPUTATIONAL ABILITY LANGUAGE AS A CONTROL SYSTEM INNER SPEECH E! L] WAT AND INTROSPECTIVE VIEW: MOUTH ACTIVATION? Possibility to reconcile WAT and introspective view of abstract concepts (Barsalou & Wiemer-Hastings, 2005)? Grounding in situations and introspection. More social aspects of situations and introspective properties elicited with ACWs E.g., Barsalou & Wiemer-Hastings (2005). Role of introspection: due not only to content (e.g. high presence of mental words) but to an internal mechanism (e.g. talking to oneself?) – this could explain the mouth activation. EN L^ WAT PROPOSAL ON ABSTRACT CONCEPTS abstract concepts: 1. Importance of linguistic and social experience for their representation 2. Higher cross-linguistic variability 3. Mouth activation: which mechanisms? re-enhactment of the linguistic/social experience of their acquisition talking to oneselves? both? EO L_ OUTLINE Language and affordances 9&'-2*+'(1+:'%0'-2*+',,$%1'()*/ ;2*70-020&<=+10/&'()*+,%$"+&.*+-$1<+'(1+20(340/&0)+)$(&*7& Beyond simulation: Words As social Tools Extension of the bodily borders ?-/&%')&+)$()*#&/=+@$%1/+?/+/$)0'2+A$$2/ Acquisition of abstract concepts Linguistic and social experiences Embodiment: mouth activation W$:*2+)'&*3$%0*/+')Z40/0&0$(+/&410*/ Y'&0(3+/&410*/ 9&41<+$(+[$%1/+'(1+1*,0(0&0$(/ 9&41<+$(+!&'20'(+903(+\'(34'3*+ B\!9C Why importance of language/mouth activation? Y*`*(')&"*(&+$,+&.*+')Z40/0&0$(+*7#*%0*()*P Y*`*7#2'('&0$(+ $,+&.*+[$%1+"*'(0(3P @?A+'(1+0(&%$/#*)&0:*+:0*[P Thanks! collaborators Gianluca Baldassarre, Laura Barca, Ferdinand Binkofski, Cristiano Castelfranchi, Daniele Caligiore, Felice Cimatti, Martin Fischer, Andrea Flumini, Claudia Gianelli, Carmen Granito, Luisa Lugli, Davide Marocco, Claudia Mazzuca, Roberto Nicoletti, Mariagrazia Ranzini, Claudia Scorolli, Elisa Scerrati, Annalisa Setti, Luca Tummolini, Edoardo Zarcone !? WAT AND BRAIN REPRESENTATION: ABSTRACT CONCEPTS AND LANGUAGE solid fMRI result: involvement of areas related to language production and comprehension during abstract concepts processing, as the left inferior frontal gyrus and the left middle temporal gyrus (Binder et al., 2009; Hoffman et al., 2015; Sakreida et al., 2013; Wang et al., 2010) META-ANALYSIS: STABLE vs. VARIABLE AFFORDANCES Meta-analysis l i – fMRI studies 1995-2015: 71 studies stable, 50 variable and mixed (uncertain), 3 raters Stable: reaching, grasping, pointing tasks with unchanging objects or objects with constant size, shape, weight - (canonical included within stable). Variable: variations of the same object in size, shape, weight, location, orientation during the task, different perspectives of an object Sakreida et al., submitted !>