Miguel Segundo-Ortin

Recent advances in plant biology suggest that plants engage in complex behaviours once thought to require nervous systems. This article surveys the empirical foundations of plant cognition, covering research on goal‐directed movement, decision‐making, anticipatory behaviour, communication, phytoacoustics, and plant neurobiology. In addition, we examine evidence for systemic signalling and anaesthesia in plants, alongside parallels and contrasts with animal cognition. These findings indicate that cognition may not be restricted to neural organisms, challenging conventional boundaries of mind. Building on this empirical base, we explore the philosophical and ethical implications of attributing cognition to plants. The discussion engages classic debates about other minds, functionalism, multiple realisability, and the possibility of plant sentience. Even if plant sentience remains speculative, their cognitive complexity raises broader questions about ecological value, precautionary concern, and the scope of moral consideration. Taken together, these discussions highlight how empirical discoveries in plant biology intersect with enduring philosophical questions about mind, intelligence, and moral status. A companion article, Plant Cognition—A Methodological Primer, provides the necessary theoretical and methodological background, whereas this piece focuses on evidence and implications.

Part I: What counts as cognition, and how can it be studied in organisms without nervous systems? The emerging field of plant cognition confronts these questions by integrating philosophy, plant science and comparative psychology. This article provides a methodological primer on the field. We first survey major theoretical approaches—computationalist and representationalist, radical embodied, and behaviour‐first—and consider how they might be integrated. We then examine methodological strategies, from comparative experimental paradigms to the role of philosophy in clarifying concepts and guiding research design. Finally, we address key epistemic challenges, including replicability, anthropomorphism and confirmation bias. Taken together, these discussions establish a conceptual and methodological foundation for plant cognition research. A companion article, Plant Cognition—An Empirical Primer, complements this survey by reviewing the empirical evidence and its philosophical implications.

Recent years have seen increased interest among 4E cognition scholars in physical disability, leading to the development of the EE-model of disability. This paper contributes to the literature on disability and 4E cognition in three key ways. First, it examines the relationship between the EE-model and social constructivist views that address the bodily reality of disablement, highlighting commonalities and distinctions. Second, it critiques the EE-model’s focus on individual strategies for expanding disabled persons’ affordance landscapes, arguing that disability policy should integrate insights from both the EE-model and social constructivist approaches. Finally, it assesses the EE-model against the 'dogma of harmony'. We argue that while the EE-model’s focus on active human-environment collaboration is valuable, it can inadvertently perpetuate this dogma. We contend that integrating certain social constructivist insights can help the EE-model avoid the dogma of harmony.

Maiese and Hanna (2019) argue that social institutions shape and transform our embodied minds, and that detrimental and harmful institutions can be reverted in order to promote mentally healthy, authentic, and fulfilling lives. This commentary aims to complement this proposal by understanding the role that narratives and narrative practices play in shaping our embodied minds, by highlighting narrativity’s (1) active, deliberative, and productive functions, and (2) its strong entanglement with embodiment. We will argue that this addition to Maiese and Hanna’s account allows agents to assume a more active role within social institutions by engaging in conscious and deliberative self-narration. This is because, we contend, not only do we understand ourselves and others according to cultural narrative archetypes; we also, crucially, bring about concrete changes in our embodiment and behavior by narrative deliberation and intention formation. As such, self-narration is not only an intellectual endeavor, but can also have profound consequences for how we experience the world; in other words, narrative practices can purposefully alter our affective framing which, in Maiese and Hanna’s account, is fundamental in the process of changing detrimental institutions into constructive, enabling institutions.

Traditionally, self-control is conceptualized in terms of internal processes such as willpower or motivational mechanisms. These processes supposedly explain how agents manage to exercise self-control or, in other words, how they act on the basis of their best judgment in the face of conflicting motivation. Against the mainstream view that self-control is a mechanism or set of mechanisms realized in the brain, several authors have recently argued for the inclusion of situated factors in our understanding of self-control. In this paper, we review such recent attempts from the perspective of situated accounts of cognition and argue that even though these accounts integrate situational features, they ultimately still rely on an orthodox, neurocentric view of self-control. Instead, we will argue that in order to develop a really situated account it is necessary to radically rethink what self-control is. Building on recent work on extended skill, we will develop an outline of a really situated account of self-control.

In the last years, we have attended to different attempts to extend the notion of affordance to include mental or cognitive actions. In short, the idea is that our capacity to perform some cognitive functions such as counting, imagining, mathematical reasoning, and so on, is preceded by our awareness of cognitive or mental affordances. In this paper, we analyze two of these attempts, Mental Affordance Hypothesis, and cognitive horizons, and conclude that they fail to deliver their promise. Our argument is two-fold. First, we show that both proposals lack an explanation for how these affordances can be perceived or experienced by the individuals. Second, we argue, focusing on the examples provided by the authors, that the introduction of cognitive affordances is not justified on explanatory grounds. In other words, neither of these proposals offers a compelling justification for thinking that performing said “mental acts” requires the perception of mental or cognitive affordances. Hence, the existence of mental or cognitive affordances remains both scientifically mysterious and explanatorily unjustified.

According to ecological psychology, agency is a crucial feature of living organisms: therefore many ecological psychologists maintain that explaining agency is one of the core aims of the discipline. This paper aims to contribute to this goal by arguing that an ecological understanding of agency requires an account of intention. So far, intentions have not played a dominant role in ecological accounts of agency. The reluctance to integrate a notion of intention seems to be motivated by the widespread assumption that intentions should be understood as internal states with representational content. This assumption goes against two main tenets of ecological psychology: its anti-representationalist stance and its claim that perception is direct (in the sense of not being mediated by inferential processes). Ecological psychology thus needs a different answer to the question what intentions are. In this paper, we aim to show that Elizabeth Anscombe’s theory of intention can be fruitfully brought to bear on an ecological theory of agency. We will argue that Anscombe’s account can meet the two challenges of bringing intentions into the framework of ecological psychology: firstly it can explain what intentions are, if not representational states; and, secondly, it can show how our perception of affordances is guided by intention without undermining the idea of direct perception.

Similarity-based cognition is commonplace. It occurs whenever an agent or system exploits the similarities that hold between two or more items—e.g., events, processes, objects, and so on—in order to perform some cognitive task. This kind of cognition is of special interest to cognitive neuroscientists. This paper explicates how similarity-based cognition can be understood through the lens of radical enactivism and why doing so has advantages over its representationalist rival, which posits the existence of structural representations or S-representations. Specifically, it is argued that there are problems both with accounting for the content of S-representations and with understanding how neurally-based structural similarities can work as representations in guiding intelligent behavior. Finally, with these clarifications in place, it is revealed how radical enactivism can commit to an account of similarity-based cognition in its understanding of neurodynamics.

We explore the nature of expert minds in skilled performance by examining classic Japanese dramatist Zeami’s account of skilled expertise in Noh drama. Zeami characterizes expert minds by the co-existence of mushin and riken no ken. Mushin is an empty state of mind devoid of mental contents. Riken no ken is a distinctive form of self-awareness, where the actor embodies a common perspective with the audience upon one’s own performance. Conventional accounts of riken no ken present it as a form of imagination: expert actors deliver their performance by imagining what it looks like from an external point of view. These imagination-based accounts, however, do not square well with the claim that riken no ken co-exists with mushin. We propose an alternative perception-based account that better accounts for this co-existence, drawing on the concept of “situated normativity” from embodied-ecological theories of cognition. The situated normativity account characterizes riken no ken as a form of “direct affective perception” in which actors are aware of their performance’s quality of attunement with the performative situation. Expert Noh actors realise a common perspective with the audience not by imagining an external point of view, but by perceiving the situation that encompasses their own performance from an aesthetic perspective cultivated and shared within the Noh community.

Although it is a common claim in the ecological psychology literature that our perception of the environment’s affordances is influenced by socio-cultural norms, an explanation of how this is possible remains to be offered. In this paper, I outline an account of this phenomenon by focusing on the ecological theory of perceptual learning. Two main theses are defended. First, I argue that to account for how socio-cultural norms can influence perception, we must pay attention not only to the education of attention but to the education of intention too. Consequently, I offer some ideas about how intention can be socio-normatively educated. Secondly, I hold that the education of intention occurs via the acquisition of habit-based preferences for particular actions. I claim that once we understand how these habit-based preferences relate to socio-cultural norms, the hypothesis that norms must be represented in the individual’s mind for them to influence affordance perception is no longer needed. If this hypothesis is on the right track, we can have an explanation for how perception can be normatively shaped and direct (non-mediated by internal representations and inferences) at the same time.

Cognitivist approaches to joint attention conceptualize it as a form of triangular interaction, between two agents and one object. When describing the interpersonal dimension of this triangle they frame it as a form of simulation, theorizing or both, involving representations of the other agent’s mental states - representation of representations - and inferences. In this paper, we advocate a different framework for understanding shared attention, the ecological psychology framework that understands attention through the notion of ‘affordance’. Affordances are relational and not representational. They are direct relationships between agents and their environments. While some authors have pointed to the notion of ‘social affordance’ (Heft 2007, 2017; Rietveld and Kiverstein 2014; Moreira de Carvalho 2020) for understanding phenomena related to shared attention, the notion remains general and imprecise. The problem is that the notion is used indistinctively to refer to a number of different phenomena that involve social attention in very different ways. To address this issue, we offer an initial classification of different kinds of social affordances, from dyadic relations between agents, and different forms of triangular interactions, reciprocal and non-reciprocal, that provide direct and indirect information about common environments to one or both agents, all the way to collective affordances that lie at the basis of socio-cultural forms of life. We argue that this account is better placed than the standard cognitivist alternative to account for both shared attention and joint action in a non-cognitively demanding way. In addition, we show how these forms of shared activity are, in turn, fundamental for the acquisition of the sociocultural norms that come to permeate human perception.

A widely shared assumption in the literature about skilled motor behavior is that any action that is not blindly automatic and mechanical must be the product of computational processes upon mental representations. To counter this assumption, in this paper we offer a radical embodied (non-representational) account of skilled action that combines ecological psychology and the Deweyan theory of habits. According to our proposal, skilful performance can be understood as composed of sequences of mutually coherent, task-specific perceptual-motor habits. Such habits play a crucial role in simplifying both our exploration of the perceptual environment and our decision-making. However, we argue that what keeps habits situated, precluding them from becoming rote and automatic, are not mental representations but the agent's conscious attention to the affordances of the environment. It is because the agent is not acting on autopilot but constantly searching for new information for affordances that she can control her behavior, adapting previously learned habits to the current circumstances. We defend that our account provides the resources needed to understand how skilled action can be intelligent (flexible, adaptive, context-sensitive) without having any representational cognitive processes built into them.

Explaining agency is a significant challenge for those who are interested in the sciences of the mind, and non-representationalists are no exception to this. Even though both ecological psychologists and enactivists agree that agency is to be explained by focusing on the relation between the organism and the environment, they have approached it by focusing on different aspects of the organism-environment relation. In this paper, I offer a suggestion for a radical embodied account of agency that combines ecological psychology with recent trends in enactive cognitive science. According to this proposal, while enactivism focuses primarily on describing how our acquired sensorimotor schemes and habits mutually equilibrate, affecting our tendency to act upon some affordances instead of others, ecological psychology focuses on studying how perceptual information contributes to the actualization of the sensorimotor schemes and habits without mediating representations, inferences, and computations. The paper concludes by briefly exploring how this ecological-enactive theory of agency can account for how socio-cultural norms shape human agency.

Non-representational approaches to cognition have struggled to provide accounts of long-term planning that forgo the use of representations. An explanation comes easier for cognitivist accounts, which hold that we concoct and use contentful mental representations as guides to coordinate a series of actions towards an end state. One non-representational approach, ecological-enactivism, has recently seen several proposals that account for “high-level” or “representation-hungry” capacities, including long-term planning and action coordination. In this paper, we demonstrate the explanatory gap in these accounts that stems from avoiding the incorporation of long-term intentions, as they play an important role both in action coordination and perception on the ecological account. Using recent enactive accounts of language, we argue for a non-representational conception of intentions, their formation, and their role in coordinating pre-reflective action. We provide an account for the coordination of our present actions towards a distant goal, a skill we call distal engagement. Rather than positing intentions as an actual cognitive entity in need of explanation, we argue that we take them up in this way as a practice due to linguistically scaffolded attitudes towards language use.

In this paper, we evaluate the pragmatic turn towards embodied, enactive thinking in cognitive science, in the context of recent empirical research on the memory palace technique. The memory palace is a powerful method for remembering yet it faces two problems. First, cognitive scientists are currently unable to clarify its efficacy. Second, the technique faces significant practical challenges to its users. Virtual reality devices are sometimes presented as a way to solve these practical challenges, but currently fall short of delivering on that promise. We address both issues in this paper. First, we argue that an embodied, enactive approach to memory can better help us understand the effectiveness of the memory palace. Second, we present design recommendations for a virtual memory palace. Our theoretical proposal and design recommendations contribute to solving both problems and provide reasons for preferring an embodied, enactive account over an information-processing treatment of the memory palace.

Ecological psychology is one of the most influential theories of perception in the embodied, anti-representational, and situated cognitive sciences. However, radical enactivists claim that Gibsonians tend to describe ecological information and its ‘pick up’ in ways that make ecological psychology close to representational theories of perception and cognition. Motivated by worries about the tenability of classical views of informational content and its processing, these authors claim that ecological psychology needs to be “RECtified” so as to explicitly resist representational readings. In this paper, we argue against this call for RECtification. To do so, we offer a detailed analysis of the notion of perceptual information and other related notions such as specificity and meaning, as they are presented in the specialized ecological literature. We defend that these notions, if properly understood, remain free of any representational commitment. Ecological psychology, we conclude, does not need to be RECtified.

According to F. Adams [this journal, vol. 68, 2018] cognition cannot be realized in plants or bacteria. In his view, plants and bacteria respond to the here-and-now in a hardwired, inflexible manner, and are therefore incapable of cognitive activity. This article takes issue with the pursuit of plant cognition from the perspective of an empirically informed philosophy of plant neurobiology. As we argue, empirical evidence shows, contra Adams, that plant behavior is in many ways analogous to animal behavior. This renders plants suitable to be described as cognitive agents in a non-metaphorical way. Sections two to four review the arguments offered by Adams in light of scientific evidence on plant adaptive behavior, decision-making, anticipation, as well as learning and memory. Section five introduces the ‘phyto-nervous’ system of plants. To conclude, section six resituates the quest for plant cognition into a broader approach in cognitive science, as represented by enactive and ecological schools of thought. Overall, we aim to motivate the idea that plants may be considered genuine cognitive agents. Our hope is to help propel public awareness and discussion of plant intelligence once appropriately stripped of anthropocentric preconceptions of the sort that Adams' position appears to exemplify.

This paper motivates taking seriously the possibility that brains are basically protean: that they make use of neural structures in inventive, on-the-fly improvisations to suit circumstance and context. Accordingly, we should not always expect cognition to divide into functionally stable neural parts and pieces. We begin by reviewing recent work in cognitive ontology that highlights the inadequacy of traditional neuroscientific approaches when it comes to divining the function and structure of cognition. Cathy J. Price and Karl J. Friston, and Colin Klein identify the limitations of relying on forward and reverse inferences to cast light on the relation between cognitive functions and neural structures. There is reason to prefer Klein’s approach to that of Price and Friston’s. But Klein’s approach is neurocentric - it assumes that we ought to look solely at neural contexts to fix cognitive ontology. Using recent work on mindreading as a case study, we motivate adopting a radically different approach to cognitive ontology. Promoting the Protean Brain Hypothesis, we posit the possibility that we may need to look beyond the brain when deciding which functions are being performed in acts of cognition and in understanding how the brain contributes to such acts by adapting to circumstance.